The centre of the third figure is empty. What digit should fit inside?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

How many letters are in the alphabet?

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

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Can you find out the total number of triangles in the given figure?

Why is the longest human nose just 11 inches?