You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Who has married many women but was never married?

The more of this there is, the less you see. What is it?

Which tank will fill first?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

Can you count the number of matches in the picture below ?