In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

What is the next number in the series?

15 29 56 108 208 ?

I’m tall when I’m young, and I’m short when I’m old. What am I?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Why do we preferably have round manhole covers and not square ones?