How can a man go eight days without sleep?

Why is a river so rich ?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

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?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

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

How could a baby fall out of a twenty-story building onto the ground and live?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

Find the number of squares in the below picture

what's the probability of getting a king or a queen from a pack of 52 cards?