An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

What do you see in the given picture?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

Who always enjoys poor health?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Who has married many women but was never married?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

What is black when you buy it, red when you use it, and gray when you throw it away?