A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Can you place six X (crosses) in below board without making three in a row in any way ?

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.

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

I have eight fingers and two thumbs but I do not live. What Am I?

Which Travels Faster? Solve below famous picture riddle: