During which month do people sleep the least?

What goes up but never comes down?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

A boy collects white seashells from the sea and brings them home every night. When he has enough of them, he decides to sell them to a trader.

The trader is ready to buy the shells and he asks the boy about the quantity. At this, the boy starts calculating. He has a giant box that contains 3 mini boxes. Two of them have another mini box inside. If the giant box can hold 50 shells, how many brown shells can he sell to the trader?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

What kind of storm is always in a rush?

What goes up but never comes down?