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thebrain
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PUZZLES FOR YOUR BRAIN
Now, it's time to think . . . . don't scroll down unless you have your answers. . .
Some Classic Lateral Thinking Exercises
1. There is a man that lives on the top floor of a very tall building.
Everyday he gets the elevator down to the ground floor to leave the
building to go to work. Upon returning from work though, he can only travel
half way up in the lift and has to walk the rest of the way unless it's raining!
WHY?
This is probably the best known and most celebrated of all lateral Thinking
puzzles. It is a true classic. Although there are many possible Solutions
which fit the initial conditions, only the canonical answer is truly satisfying.
2. A man and his son are in a car accident. The father dies on the scene,
but the child is rushed to the hospital. When he arrives the surgeon says
"I can't operate on this boy, he is my son!" How can this be?
3. A man is wearing black. Black shoes, socks, trousers, jumper, gloves and
balaclava. He is walking down a black street with all the street lamps off.
A black car is coming towards him with its light off too but somehow
manages to stop in time. How did the driver see the man?
4. Title : The Elder Twin One day Kerry celebrated her birthday. Two days
later her older twin brother, Terry, celebrated his birthday. Why?
5. Title : Manhole Covers Why is it better to have round manhole covers
than square ones? This is logical rather than lateral, but it is a good
puzzle which can be solved by lateral thinking techniques. It is supposedly
used by a very well-known software company as an interview question for
prospective employees.
6. Title : The Deadly Party A man went to a party and drank some of the
punch. He then left early. Everyone else at the party who drank the punch
subsequently died of poisoning. Why did the man not die?
7. Title : Heaven A man died and went to Heaven. There were thousands of
other people there. They were all naked and all looked as they did at the
age of 21. He looked around to see if there was anyone he recognized. He
saw a couple and he knew immediately that they were Adam and Eve. How did
he know?
8. Title : Trouble with Sons A woman had two sons who were born on the same
hour of the same day of the same year. But they were not twins. How could
this be so?
9. Title : The Man in the Bar A man walks into a bar and asks the barman
for a glass of water. The barman pulls out a gun and points it at the man.
The man says 'Thank you' and walks out. This puzzle has claims to be the
best of the genre. It is simple in its statement, absolutely baffling and
yet with a completely satisfying solution. Most people struggle very hard
to solve this one yet they like the answer when they hear it or have the
satisfaction of figuring it out.
SCROLL DOWN FOR SOLUTIONS
SOLUTIONS: 1) The man is very very short and so can only reach half way up
the lift buttons! However, if it is raining then he will have his umbrella
with him and so can press the higher buttons with it.
2) The surgeon is the boy's mother
3) It was day time.
4) At the time she went into labor, the mother of the twins was traveling
by boat. The older twin, Terry, was born first early on March 1st. The boat
then crossed a time zone and Kerry, the younger twin, was born on February
the 28th. Therefore, the younger twin celebrates her birthday two days
before her older brother.
5) A square manhole cover can be turned and dropped down the diagonal of
the manhole. A round manhole cannot be dropped down the manhole. So for
safety and practicality, all manhole covers should be round.
6) The poison in the punch came from the ice cubes. When the man drank the
punch, the ice was fully frozen. Gradually it melted, poisoning the punch.
7) He recognized Adam and Eve as the only people without navels. because
they were not born of women, they had never had umbilical cords and
therefore they never had navels. This one seems perfectly logical but it
can sometimes spark fierce theological arguments.
8) They were two of a set of triplets (or quadruplets, etc.) This puzzle
stumps many people. They try outlandish solutions involving test-tube
babies or surrogate mothers. Why does the brain search for complex solutions
when there is a much simpler one available?
9) The man had hiccups. The barman recognized this from his speech and
drew the gun in order to give him a shock. It worked and cured the hiccups-so
the man no longer needed the water. The is a simple puzzle to state but a
difficult one to solve. It is a perfect example of a seemingly irrational
and incongruous situation having a simple and complete explanation.
Amazingly this classic puzzle seems to work in different cultures and languages.
Now, it's time to think . . . . don't scroll down unless you have your answers. . .
Some Classic Lateral Thinking Exercises
1. There is a man that lives on the top floor of a very tall building.
Everyday he gets the elevator down to the ground floor to leave the
building to go to work. Upon returning from work though, he can only travel
half way up in the lift and has to walk the rest of the way unless it's raining!
WHY?
This is probably the best known and most celebrated of all lateral Thinking
puzzles. It is a true classic. Although there are many possible Solutions
which fit the initial conditions, only the canonical answer is truly satisfying.
2. A man and his son are in a car accident. The father dies on the scene,
but the child is rushed to the hospital. When he arrives the surgeon says
"I can't operate on this boy, he is my son!" How can this be?
3. A man is wearing black. Black shoes, socks, trousers, jumper, gloves and
balaclava. He is walking down a black street with all the street lamps off.
A black car is coming towards him with its light off too but somehow
manages to stop in time. How did the driver see the man?
4. Title : The Elder Twin One day Kerry celebrated her birthday. Two days
later her older twin brother, Terry, celebrated his birthday. Why?
5. Title : Manhole Covers Why is it better to have round manhole covers
than square ones? This is logical rather than lateral, but it is a good
puzzle which can be solved by lateral thinking techniques. It is supposedly
used by a very well-known software company as an interview question for
prospective employees.
6. Title : The Deadly Party A man went to a party and drank some of the
punch. He then left early. Everyone else at the party who drank the punch
subsequently died of poisoning. Why did the man not die?
7. Title : Heaven A man died and went to Heaven. There were thousands of
other people there. They were all naked and all looked as they did at the
age of 21. He looked around to see if there was anyone he recognized. He
saw a couple and he knew immediately that they were Adam and Eve. How did
he know?
8. Title : Trouble with Sons A woman had two sons who were born on the same
hour of the same day of the same year. But they were not twins. How could
this be so?
9. Title : The Man in the Bar A man walks into a bar and asks the barman
for a glass of water. The barman pulls out a gun and points it at the man.
The man says 'Thank you' and walks out. This puzzle has claims to be the
best of the genre. It is simple in its statement, absolutely baffling and
yet with a completely satisfying solution. Most people struggle very hard
to solve this one yet they like the answer when they hear it or have the
satisfaction of figuring it out.
SCROLL DOWN FOR SOLUTIONS
SOLUTIONS: 1) The man is very very short and so can only reach half way up
the lift buttons! However, if it is raining then he will have his umbrella
with him and so can press the higher buttons with it.
2) The surgeon is the boy's mother
3) It was day time.
4) At the time she went into labor, the mother of the twins was traveling
by boat. The older twin, Terry, was born first early on March 1st. The boat
then crossed a time zone and Kerry, the younger twin, was born on February
the 28th. Therefore, the younger twin celebrates her birthday two days
before her older brother.
5) A square manhole cover can be turned and dropped down the diagonal of
the manhole. A round manhole cannot be dropped down the manhole. So for
safety and practicality, all manhole covers should be round.
6) The poison in the punch came from the ice cubes. When the man drank the
punch, the ice was fully frozen. Gradually it melted, poisoning the punch.
7) He recognized Adam and Eve as the only people without navels. because
they were not born of women, they had never had umbilical cords and
therefore they never had navels. This one seems perfectly logical but it
can sometimes spark fierce theological arguments.
8) They were two of a set of triplets (or quadruplets, etc.) This puzzle
stumps many people. They try outlandish solutions involving test-tube
babies or surrogate mothers. Why does the brain search for complex solutions
when there is a much simpler one available?
9) The man had hiccups. The barman recognized this from his speech and
drew the gun in order to give him a shock. It worked and cured the hiccups-so
the man no longer needed the water. The is a simple puzzle to state but a
difficult one to solve. It is a perfect example of a seemingly irrational
and incongruous situation having a simple and complete explanation.
Amazingly this classic puzzle seems to work in different cultures and languages.