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?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

What can go up a chimney down, but can’t go down a chimney up?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

What is at the end of a rainbow?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?