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

which number am I?

What does this mathematical rebus means ?

How many triangles are there on the puzzle below?

Replace the question mark with the correct number in below Picture:

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

Our product and our sum always give the same answer. Who are we?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?