Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

John was piloting a plane behind a car but was never able to overtake it. Why?

What has one eye, but can’t see?

How many times in a given day, minutes and hour clock comes in a straight line ?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

What am I?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?