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Brain Teasers

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 There are three houses. One is red, one is blue, and one is white.

If the
red house is to the left of the house in the middle, and the blue house is to the
right to the house in the middle, where is the white house?

Hide answer

In Washington, D.C.!

 You are in a cabin and it is pitch black. You have one match on you.
Which do you light first, the newspaper, the lamp, the candle, or the fire?

Hide answer

You light the match first!

 Who is bigger: Mr. Bigger, Mrs. Bigger, or their baby?

Hide answer

The baby, because he is a little bigger.

 Mike is a butcher. He is 5’10” tall. What does he weigh?

Hide answer

Meat

 A farmer has 17 sheep and all but nine die. How many are left?
Hide answer

Nine

 How far can a rabbit run into the woods?

Hide answer

Halfway. After that, he is running out of the woods.

 In a year, there are 12 months. Seven months have 31 days. How many
months have 28 days?

Hide answer

They all do.

 What are the next three letters in the following sequence?J, F, M, A, M,


J, J, A, __, __, __

Hide answer

S, O, N. The sequence is first letter of the months of the year. September,


October, and November are the next in the sequence.

 Jimmy’s mother had four children. She named the first Monday. She
named the second Tuesday, and she named the third Wednesday. What is
the name of the fourth child?
Hide answer

Jimmy, because Jimmy’s mother had four children!

 Before Mt. Everest was discovered, what was the highest mountain in
the world?

Hide answer

Mt. Everest. It was still the highest in the world. It just had not been
discovered yet!

 Which is heavier? A pound of feathers or a pound of rocks?

Hide answer

Neither. Both weigh a pound!

 What is full of holes but can still hold water?

Hide answer

A sponge

 A family lives in a large tower apartment building, 10 floors high. Every


day their son takes the elevator from the family’s apartment on the 10thfloor to
the ground floor and goes to school. When he returns in the afternoon, he
uses the elevator to get to the fifth floor, and then uses the stairs for the
remaining five floors. Why?
Hide answer

Because he cannot reach the buttons higher than five.

 A plane crashes on the border of the U.S. and Canada. Where do they
bury the survivors?

Hide answer

You do not bury the SURVIVORS!

 I do not have any special powers, but I can predict the score of any
football game before it begins. How can I do this?

Hide answer

Well, the score before any football game is always zero to zero!

 You are driving a bus. At the first stop, two women get on. The second
stop, three men get on and one woman gets off. At the third stop, three kids
and their mom get on, and a man gets off. The bus is grey, and it is raining
outside. What color is the bus driver’s hair?

Hide answer

Whatever color your hair is! Remember, you are the bus driver!

 Imagine that you are in a boat, in the middle of the sea. Suddenly, you
are surrounded by hungry sharks, just waiting to feed on you. How can you
put an end to this?
Hide answer

Stop imagining!

 Give me food, and I will live; give me water, and I will die. What am I?

Hide answer

Fire

 Which travels faster? Hot or Cold?

Hide answer

Hot is faster, because you can catch a cold.

 When you have me, you immediately feel like sharing me. But, if you do
share me, you do not have me.

Hide answer

A secret

 What can you hold without ever touching or using your hands?

Hide answer

Your breath!
 First, I threw away the outside and cooked the inside. Then I ate the
outside and threw away the inside. What did I eat?

Hide answer

Corn on the cob

 A lift is on the ground floor. There are four people in the lift including me.
When the lift reaches first, floor, one person gets out and three people get in.
The lift goes up to the second floor, 2 people get out 6 people get in.
It then goes up to the next floor up, no-one gets out but 12 people get in.
Halfway up to the next floor up the lift cable snaps, it crashes to the floor.
Everyone else dies in the lift. How did I survive?

Hide answer

Answer: I got out on the second floor!

 A man walks into a restaurant and the waiter says, “Good day, Admiral.”
Why did the waiter call the man an Admiral?

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Answer: Because he was wearing his uniform!

 I have no voice, yet I speak to you.


I tell of all things in the world that people do.I have leaves, but I am not a tree.I
have pages, but I am not a bride.I have a spine, but I am not a man.I have
hinges, but I am not a door.I have told you all. I cannot tell you more.What am
I?
Hide answer

Answer: A book

 A man pushes his car to a hotel and tells its owner that he is bankrupt.
Why?

Hide answer

He is playing Monopoly

 You are a cyclist in a cross-country race. Just before the crossing finish
line, you overtake the person in second place. In what place did you finish?

Hide answer

Second Place. If you pass the person in second, you take second place, and
they become third.

 You are in a room that has three switches and a closed door. The
switches control three light bulbs on the other side of the door. Once you open
the door, you may never touch the switches again. How can you definitively
tell which switch is connected to each of the light bulbs?

Hide answer

Turn on the first two switches. Leave them on for 5 minutes. Once 5 minutes
has passed, turn off the second switch, leaving one switch on. Now go
through the door. The light that is still on is connected to the first switch.
Whichever of the other two is warm to the touch is connected to the second
switch. The bulb that is cold is connected to the switch that was never turned
on!

 I left my campsite and hiked south for 3 miles. Then I turned east and
hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I
came upon a bear inside my tent eating my food! What color was the bear?

Hide answer

White. The only place you can hike 3 miles south, then east for 3 miles, then
north for 3 miles and end up back at your starting point is the North Pole.
There are only polar bears in the North Pole, and they are white!

 Crime Scene: A large wooden box was built with one door. The door
was locked from the inside, and then nailed shut from the inside. The police
break into the room. In the middle of the room there is a dead man hanging
from the ceiling, with his shoes 3 feet off the ground. The only other thing in
the room is a hammer lying in a puddle of water. Can you explain what
happened?

Hide answer

He committed suicide by hanging himself when the ice melted.

 You are in a cookie factory, and need to make a huge batch of


chocolate chip cookies. The recipe calls for exactly 4 cups of sugar. Problem
is that you have two buckets. One bucket holds 5 cups, the other 3 cups.
Using these buckets, how can you measure exactly 4 cups of sugar?

Hide answer
This is possible, and there are two ways to do it:
Solution 1: Fill the 3-cup bucket and pour it into the 5-cup bucket. Fill the 3-
cup bucket again, and pour it into the 5-cup bucket until the 5-cup bucket is
full. That will leave exactly 1 cup of sugar in the 3-cup bucket. Dump out the 5-
cup bucket, and dump the 1 cup from the 3-cup bucket into the empty 5-cup
bucket. This leaves 1 cup in the 5-cup bucket. Now fill the 3-cup bucket again
and add it to the 5-cup bucket. Now you have exactly 4 cups of sugar in the 5-
cup bucket!Solution 2: Fill the 5-cup bucket. Pour it into the 3-cup bucket. This
leaves 2 cups in the 5-cup bucket. Dump out the 3-cup bucket. Now pour the
2 cups from the 5 cup into the 3 cup. Refill the 5 cup. Now pour the 5 cup into
the 3 cup until the 3 cup is full. That will leave exactly 4 cups in the 5-cup
bucket!

 A man is the owner of a winery who recently passed away. In his will, he
left 21 barrels (seven of which are filled with wine, seven of which are half full,
and seven of which are empty) to his three sons. However, the wine and
barrels must be split, so that each son has the same number of full barrels,
the same number of half-full barrels, and the same number of empty barrels.
Note that there are no measuring devices handy. How can the barrels and
wine be evenly divided?

Hide answer

Two half-full barrels are dumped into one of the empty barrels. Two more half-
full barrels are dumped into another one of the empty barrels. This results in
nine full barrels, three half-full barrels, and nine empty barrels. Each son gets
three full barrels, one half-full barrel, and three empty barrels.

 An Arab sheik is old and must will his fortune to one of his two sons. He
makes a proposition. His two sons will ride their camels in a race, and
whichever camel crosses the finish line LAST will win the fortune for its owner.
During the race, the two brothers wander aimlessly for days, neither willing to
cross the finish line. In desperation, they ask a wise man for advice. He tells
them something; then the brothers leap onto the camels and charge toward
the finish line. What did the wise man say?
Hide answer

The rules of the race were that the owner of the camel that crosses the finish
line last wins the fortune. The wise man simply told them to switch camels.

 You have a 3-gallon jug and a 5-gallon jug. You need to measure out
exactly 7 gallons of water. How can you do it?

Hide answer

Fill the 5-gallon jug, pour it into the 3-gallon jug until the 3 gallon is full, and
leaving 2 gallons in the 5-gallon jug. Now pour the 3-gallon jug out. Pour the
remaining 2 gallons from the 5 gallon into the empty 3-gallon jug. Now fill the
5 gallon from the faucet. You now have exactly 7 gallons.

 A man is on a game show. He is presented with two doors, one on the


left, and one on the right. Behind one is 2 million dollars, and behind the other
is a donkey. Choose the correct door to win the prize. There are also two men
in front of the doors, and they know which door leads to the millions. One
wears a black hat, and the other wears a white hat.The host explains that one
of the men is a liar, and will always lie, and the other man will always tell the
truth – but you do not know which is which.You can ask only one of the men
only one question. What is the question, and which man do you ask to ensure
you win the money?

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Answer: You ask either man the following question: “If I asked the other guy
which door has the money, what would he say?” and then choose the
opposite door. Work it out: If you ask the question to the liar, he will lie about
the ‘correct’ answer, so you must choose the opposite door. If you ask the
truth teller, he will tell the truth about the lie, so you can choose the opposite
door as well.
 Cannibals in the jungle capture three men. The men are given one
chance to escape with their lives. The men are lined up and bound to stakes
such that one man can see the backs of the other two, the middle man can
see the back of the front man, and the front man cannot see anybody. The
men are shown five hats, three of which are black and two of which are white.
Then the men are blindfolded, and one of the five hats is placed on each
man’s head. The remaining two hats are hidden away. The blindfolds are
removed. The men are told that if just one of the men can guess what hat he
is wearing, they may all go free. Time passes. Finally, the front man, who
cannot see anyone, correctly guesses the color of his hat. What color was it,
and how did he guess correctly?

Hide answer

The back man can see the hats worn by the two men in front of him. So, if
both of those hats were white, he would know that the hat he wore was black.
However, since he does not answer, he must see at least one black hat ahead
of him. After it becomes apparent to the middle man that the back man cannot
figure out what he is wearing, he knows that there is at least one black hat
worn by himself and the front man. Knowing this, if the middle man saw a
white hat in front of him, he would know that his own hat was black, and could
answer the question correctly. But, since he does not answer, he must see a
black hat on the front man. After it becomes apparent to the front man that
neither of the men behind him can answer the question, he realizes the middle
man saw a black hat in front of him. So he says, correctly, “My hat is black.”

 A man is looking at a photograph of someone. His friend asks who it is.


The man replies, “Brothers and sisters, I have none. But that man’s father is
my father’s son.” Who was in the photograph?

Hide answer

His son.
 What words are pronounced differently by merely capitalizing the first
letter?

Hide answer

There are several, and there could be more: 1. job, Job 2. herb, Herb 3.
polish, Polish

 A man left home running. He ran a ways and then turned left, ran the
same distance and turned left again, ran the same distance and turned left
again. When he got home, there were two masked men. Who were they?

Hide answer

The catcher and the umpire.

 Your dad tells you that he will pay you $6.00 an hour for the 6 seconds
that you take to wash your hands before dinner.
How much did you make for washing your hands?

Hide answer

Answer: 1 cent

 There is a fishing trawler, with a ladder in it, leaning against a wall at the
harbor. There are five oars and two fishing nets in the trawler. The distance
between two consecutive steps on the ladder is 1 meter. If waves lashing
against the wall rise half meter in every half hour, in how much time will six
steps of the ladder get under the waves?
Hide answer

The trawler rises with the waves, so no steps will go under water.

 When young, I am sweet in the sun.When middle-aged, I make you


gay.When old, I am valued more than ever.

Hide answer

Answer: Wine

 As I was going to St. Ives,


I met a man with seven wives.Each wife had seven sacks,Each sack had
seven cats,Each cat had seven kits.Kits, cats, sacks and wives,How many
were going to St. Ives?

Hide answer

Answer: One. Only I was going to St. Ives

 Guess the next three letters in the series GTNTL.

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I, T, S. The complete sequence is the first letter of every word in the sentence.

 A boy is walking down the road with a doctor. While the boy is the
doctor’s son, the doctor is not the boy’s father. Then who is the doctor?
Hide answer

The doctor is the boy’s mother.

 I am the beginning of sorrow and the end of sickness. You cannot


express happiness without me yet I am in the midst of crosses. I am always in
risk yet never in danger. You may find me in the sun, but I am never out of
darkness.

Hide answer

The letter S

 Joseph and Lena are found dead on the floor with some water around.
The windows are open and a strong wind draft is blowing the curtains around.
How did they die?

Hide answer

Joseph and Lena were goldfishes. The wind tipped their bowl over, hence
killing them!

 What has a mouth, but cannot eat; moves, but has no legs; and has a
bank, but cannot put money in it?

Hide answer

River
 A man wanted to encrypt his password but he needed to do it in a way
so that he could remember it. He had to use seven characters consisting of
letters and numbers only (no symbols like ! or <). In order to remember it, he
wrote down “You force heaven to be empty.” What is his password?

Hide answer

Try to pronounce the sentence like these characters: u472bmt.

 A man condemned to death has the option of picking one of the


mentioned three rooms. The first room is a furnace filled with flames. The
second has armed men with loaded guns, while the third has lions starving for
years. Which one should the man choose?

Hide answer

The third room, because lions starving for years would be long dead!

 Arnold Schwarzenegger has a long one. Michael J. Fox has a short one.
Madonna does not use hers. Bill Clinton always uses his. The Pope never
uses his. What is it?

Hide answer

Surname

 A man wanted to work, but he could not log in to his computer terminal
successfully. He tried twice, but still his password did not work. He suddenly
remembered that the passwords are reset every month for security purposes.
So, he called his boss and said, “Hey boss, my password is out of date.”
His boss replied, “Yes, that’s right. The password is different. Listen carefully.
I am sure, you can figure out the new one. The new one has the same amount
of letters as your old password, but only four of the letters are the
same.””Thanks boss.”With that, the man could correctly log into his station.
What are both the new and old passwords?

Hide answer

Answer: The old one was “out of date.” The new one is “different.” Both
passwords contain the letters d, f, e, and t.

 The number 8,549,176,320 is a unique number. What is so special


about it?

Hide answer

This is the only number that includes all the digits arranged in alphabetical
order.

 A man is headed to a mountain along with a lion, a goat, and a basket


of vegetables. On the way, he needs to cross a river and the boat can only
carry two things at a time. If he takes the vegetables, the lion will eat the goat.
If he takes the lion, the goat will eat the vegetables. How does he cross the
river?

Hide answer

Trip 1: He takes the goat with him, leaving the lion and the vegetables behind.
On reaching the other riverbank, he drops off the goat.Trip 2: He then comes
back for the lion, leaving the vegetables behind. On reaching the bank this
time, he drops the lion, and again takes the goat along.Trip 3: He drops off the
goat again and takes the vegetables with him to the other shore.Trip 4: Lastly,
he comes back alone for the goat.
 Your parents have six sons including you and each son has one sister.
How many people are in the family?

Hide answer

Nine. Two parents, six sons, and one daughter. All of them have one sister
(not six sisters)

1. What 5-letter word becomes shorter when you add two letters to it?
2. Find a number less than 100 that is increased by one-fifth of its value
when its digits are reversed.
3. A bat and a ball cost $1.10. The bat costs one dollar more than the ball.
How much does the ball cost?
4. What letter comes next in the following sequence? D R M F S L T_
5. How many times can you subtract the number two from the number
fifty?
6. In British Columbia, you cannot take a picture of a man with a wooden
leg. Why not?
7. Can you think of a common word that contains double C, double S and
double L? Can you think of a second one?
8. What number comes next in the following sequence? 2 4 8 10 20 _
9. Without it, I am dead. If I am not, then then I am behind. What am I?
10. If you wrote all of the numbers from 300 to 400 on a piece of paper, how
many times would you have written the number 3?
11. You are in a place called Jack’s World and there is only one law. There
is a mirror, but no reflection. There is pizza with cheese, but not sausage.
There is pepper, but no salt. There is a door, yet no entrance or exit. What is
the law?
12. I come in different shapes and sizes. Parts of me are curved, other parts
are straight. You can put me anywhere you like, but there is only one right
place for me. What am I?
13. What is black when you get it, red when you use it, and white when you
are all through with it?
14. It goes in dry, it comes out wet, the longer it is in, the stronger it gets.
What is it?
15. I have no eyes, no legs, or ears, and I help move the earth. What am I?
16. A truck is stuck under a bridge and the driver cannot get it out. A man
walks by and stops to help. He easily gets the truck unstuck. How did he do
it?
17. How much dirt is there in a hole that is 3 feet deep, and 6 inches in
diameter?
18. What makes more as you take them?
19. When can you add two to eleven and get one as the correct answer?
20. A man went into a party and drank some of the punch. He then left
early. Everyone at the party who drunk the punch subsequently died of
poisoning. Why did the man not die?

Answers:

1. Short
2. 45 (1/5 of 45 = 9, 9 + 45 = 54)
3. The ball costs 5 cents. One dollar more than 5 cents is $1.05, the sum
of which is $1.10.
4. D – each letter represents one note in the diatonic musical scale: Do,
Re, Mi, Fa, Sol, La, Ti, Do
5. After that, you would be subtracting from 48.
6. You cannot take a picture with a wooden leg; you need a camera.
7. Unsuccessfully.
8. 22 (the sequence alternates +2, x2)
9. Ahead
10. 120 (100 threes in the hundreds place + 10 threes in the tens place + 10
threes in the ones place)
11. Everything (each word) in Jack’s World must contain double letters.
12. A jigsaw puzzle piece
13. Charcoal
14. A tea-bag
15. An earthworm
16. He let the air out of the tires.
17. None, because a hole and contains no dirt!
18. Footsteps
19. When you add two hours to eleven o’clock, you get one o’clock.
20. The poison from the punch came from the ice cubes. When the man
drank the punch, the ice was fully frozen. Gradually, as the ice cubes melted,
the poison was released into the punch.
A man is looking at a photograph of someone. His friend asks who it is. The man replies,
“Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the
photograph

Forrest left home running. He ran a ways and then turned left, ran the same distance and
turned left again, ran the same distance and turned left again. When he got home, there
were two masked men. Who were they?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this
be?

Answer: The person was born in 2005 BC.


Fourteen of the kids in the class are girls. Eight of the kids wear blue shirts. Two of the kids
are neither girls or wear a blue shirt. If five of the kids are girls who wear blue shirts, how
many kids are in the class?

The person who makes it has no need for it. The person who purchases it does not use it.
The person who does use it does not know he or she is. What is it?

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