This riddle, generally known as the Zebra Puzzle, is attributed to Einstein although there is no evidence for his authorship. It is said that only two percent of the world population can solve it!
There are five houses next to each other in a street. Each of the five houses is painted in a different color. Andrew, Bob, Charles, David en Eric each live in a house, they all have different nationalities, own different pets and play different musical instruments.
Additionally, the following information is known:
- Eric lives in a Red house.
- Charles has a Hamster.
- David is een Dutchman.
- The Ivory house is left of the Green house.
- In the Ivory house lives a German.
- The person who plays Violin, has a Cat.
- In the Blue house they play the Piano.
- In the middle house lives a Frenchman.
- Andrew lives in the first house.
- The person playing Drums lives next to the person who has a Dog.
- The person who has a Bird, lives next to the person who plays the Piano.
- The Belgian plays Guitar.
- Bob plays Trumpet.
- Andrew lives next to the Yellow house.
- The person who plays Drums, lives next to the Englishman.
Question: Who has a Fish as pet?
Riddle of the Sphinx
What goes on four legs at dawn, two at noon and three at dusk?
In a bag are five English bowlers: three white ones and two
Three men are standing behind each other in front of a wall, all looking
at each other's back with the first one ultimately just seeing the wall. I
randomly grab a bowler from the bag and put one on each head of the men,
taking care that they don't see what color I put on their own head.
After that, I ask the man at the back of the row if he can tell what
color of hat he has on his head. His answer is "No". I then proceed to the
man in front of him and ask him the same question. He also answers "No". I
go further to the first man, the one standing closest to the wall, and also
ask him if he knows what color of hat that he has on his head. Surprisingly
he answers "Yes" and is even right in his knowledge of the color. Can you
also tell me what hat he is wearing?
Suppose you're out on the streets in front of an unlimited
water tap and you have two water jars with you: one bottle with a capacity of
three liters and one that can hold five liters.There are no marks on the jars.
Can you fill a bottle with exactly four liters water?
Bridges to Freedom
After more than two years of pain and suffering, you finally
managed to escape from the dungeon in the castle you were held captive. Chased
by that evil man who kept you imprisoned, you must escape out of this castle as
quick as possible. However, to be fully out of his reach, you must cross the
watercanal that is surrounding his castle, 'cause he never leaves his own
territory. There are two bridges you can take to escape to freedom, but beware:
one of the two will not be stable enough to take you to the other side. If you
don't want to end as food for the crocodiles in the cold water down there, you
must make the right choice. Luckily, two twin brothers that both know the
stability of these bridges are standing on the side of freedom. But there is
still one problem: you know that one of these brothers always tells the truth
and that his brother always lies, but you don't know who is who. Unfortunately,
the master of evil is getting closer, so you don't have time for a friendly
conversation. You have only time to pose one question to one of the twins and
then you must run on one of those bridges. What question will you ask?
When an egyptian dies, he leaves an inheritance of 17 camels
to his three sons. According to his will, the first son must receive one half,
the second must receive one third and the last son only gets one ninth.
Stimulated to execute their father's last wish as correct as possible the sons
experience a big problem: how do they divide the 17 camels? It cannot be divided
by two, nor by three nor by nine! They ask the advice of all the rich business
people of the city but none could help them. Suddenly, the oldest, strangest
-and also very poor- man of the city passes by with his old, skinny camel.
Desperate as they are, they decide to ask the advice of this wise man. By
wonder, he knows the solution to their problem! Can you find a solution?
How do you keep a blonde busy?
Write "please turn over" on both sides of a piece of paper.
How do you get a blonde to marry you?
Tell her she's pregnant.
What will she ask you?
"Is it mine?"
How do you make a blonde laugh on Monday morning?
Tell her a joke on Friday.
Why did the blonde stare at frozen orange juice can for two hours?
Because it said "concentrate".
Why did the blonde climb up to the roof of the bar?
She heard that the drinks were on the house.
What do you call it when a blonde dies her hair brunette?
Why was the blonde so excited after she finished her jigsaw puzzle in only 6 months?
Because on the box it said "From 2-4 years".
What does a blonde tell you if you ask her if your flash light works?
Why does a blonde enters and leaves the house through the window in the spring?
Because the winter is standing at the door.
How does a blonde kills a fish?
She drowns it.
How does a blonde kills a bird?
She throws it out of the window.
Two brunettes and a blonde are in the hospital awaiting the arrival of their first children.
The 1st brunette says, "I just know I'm going to have a girl, because I conceived while I was on my back".
The 2nd brunette says, "Mine's going to be a boy, because I was on top during conception".
The blonde says, "Uh-oh! I'm going to have a puppy!"
There are three blondes stranded on an island. Suddenly a fairy appears and offers to grant each one of them one wish.
The first blonde asks to be intelligent. Instantly, she is turned into a brown haired woman and she swims off the island.
The next one asks to be even more intelligent than the previous one, so instantly she is turned into a black haired woman. The black haired woman builds a boat and sails off the island.
The third blonde asks to become even more intelligent than the previous two. The fairy turns her into a man, and he walks across the bridge.
There really are only two types of people in the world, those that don't do math, and those that take care of them.
Life is complex. It has real and imaginary components.
Philosophy is a game with objectives and no rules.
Mathematics is a game with rules and no objectives.
One attractive young businesswoman to another, over lunch:
My life is all math. I am trying to add to my income, subtract from my
weight, divide my time, and avoid multiplying.
In the Garden of Eden, God is giving Adam a geometry
lesson: "Two parallel lines intersect at infinity. It can't be proven but
I've been there".
A mathematician and an engineer agree to a psychological
The mathematician is put in a chair in a large empty room and a
beautiful naked woman is placed on a bed at the other end of the room. The
psychologist explains, "You are to remain in your chair. Every five minutes,
I will move your chair to a position halfway between its current location
and the woman on the bed." The mathematician looks at the psychologist in
disgust. "What? I'm not going to go through this. You know I'll never reach
the bed!" And he gets up and storms out. The psychologist makes a note on
his clipboard and ushers the engineer in.
He explains the situation, and the
engineer's eyes light up and he starts drooling. The psychologist is a bit
confused. "Don't you realize that you'll never reach her?" The engineer
smiled and replied, "Of course! But I'll get close enough for all practical purposes!"
In some foreign country a priest, a lawyer and an engineer
are about to be guillotined. The priest puts his head on the block, they
pull the rope and nothing happens -- he declares that he's been saved by
divine intervention -- so he's let go. The lawyer is put on the block, and
again the rope doesn't release the blade, he claims he can't be executed
twice for the same crime and he is set free too. They grab the engineer and
shove his head into the guillotine, he looks up at the release mechanism and
says, "Wait a minute, I see your problem......"
A physician, a civil engineer, and a computer scientist
were arguing about what was the oldest profession in the world.
The physician remarked, "Well, in the Bible, it says that God created Eve from a
rib taken out of Adam. This clearly required surgery, and so I can rightly
claim that mine is the oldest profession in the world."
The civil engineer interrupted and said, "But even earlier in the book of Genesis, it stated
that God created the order of the heavens and the earth from out of chaos.
This was the first and certainly the most spectacular application of civil
engineering. Therefore, fair doctor, you are wrong: mine is the oldest
profession in the world."
The computer scientist leaned back in his chair, smiled and then said confidently, "Ah, but who do you think created the chaos?"
One night, a Delta twin-engine puddle jumper was flying somewhere above New Jersey. There were five people on board: the pilot,
Michal Jordan, Bill Gates, the Dali Lama, and a hippie. Suddenly, an oxygen
generator exploded loudly in the luggage compartment, and the passenger
cabin began to fill with smoke. The cockpit door opened, and the pilot burst
into the compartment.
"Gentlemen", he began, "I have good news and bad news. The bad news is
that we're about to crash in New Jersey. The good news is that there are
four parachutes, and I have one of them!". With that, the pilot threw open the door and jumped from the plane.
Michael Jordan was on his feet in a flash. "Gentlemen," he said, "I am
the world's greatest athlete. The world needs great athletes. I think the
world's greatest athlete should have a parachute!". With these words, he
grabbed one of the remaining parachutes and hurtled through the door and
into the night.
Bill Gates rose and said, "Gentlemen, I am the world's smartest man. The
world needs smart men. I think the world's smartest man should have a
parachute, too.". He grabbed one and out he jumped.
The Dali Lama and the hippie looked at one another. Finally, the Dali
Lama spoke. "My son," he said, "I have lived a satisfying life and have
known the bliss of True Enlightenment. You have your life ahead of you; you
take a parachute, and I will go down with the plane.".
The hippie smiled and said, "Cool it, pop. The world's smartest man just
jumped out wearing my backpack!".