Shown above are 4 men buried up to their necks in the ground.
They can not move so can only look forward.
Between A and B is a brick wall which can not be seen through.
They know that between them are 4 hats, 2 are black and 2 are white, but they do not know which colour they are wearing.
In order to avoid being shot one of them must call out to the executioner the colour of their hat. If they get it wrong, everyone will be shot.
They are not allowed to talk to each other and have 10 minutes to fathom it out.
After 1 minute:
- Which one of them calls out?
- Why is he 100% certain of the colour of his hat?
This is not a trick question.
There are no outside influences nor other ways of communicating. They cannot move and are buried in a straight line. So A and B can only see their respective sides of the brick wall, C can see B and D can see B and C.
(Answer on next page.)
Albert Einstein wrote this riddle. He was quoted saying he believed that 98% of the world could not solve it. Are you in the top 2% of intelligent people in the world?
There are no tricks - just pure logic.
- There are 5 houses in 5 different colors, all in a row.
- In each house lives a different person with a different nationality.
- These 5 people drink a certain type of beverage, smoke a certain brand of cigar, and keep a certain pet.
- No person has the same pet, smokes the same brand of cigar, or drinks the same beverage.
The question is, who owns the fish?
- The Brit lives in the red house.
- The Swede has a dog.
- The Dane drinks tea.
- The green house is on the left of the white house.
- The green house’s owner drinks coffee.
- The person who smokes Pall Ball has a bird.
- The owner of the yellow house smokes Dunhill.
- The man living in the center house drinks milk.
- The Norwegian lives in the first house.
- The man who smokes Blends lives next to the cat owner.
- The man who owns a horse lives next to the one who smokes Dunhill.
- The man who smokes Blue Master drinks beer.
- The German smokes Prince.
- The Norwegian lives next to the blue house.
- The man who smokes Blends has a neighbor who drinks water.
(Answer on next page.)
You have 9 snooker balls. All appear identical. One of them however is a slightly different weight to the others but feels the same to your hand. This ball is either lighter OR heavier. You don’t know. To determine the odd ball you have a balance scales. You must find the ball in three weighings or less. How can you do it? Answers must explain FULLY how this is done.
(Answer on next page.)
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