How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

How many letters are in the alphabet?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

O_er_t_o_

Complete the missing letters of the given word.

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 ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Joseph buys three kinds of chocolates for 100 rupees. The first one is priced at 5 rupees, second one at 3 rupees and third one at 0.5 rupees.

If he bought 100 chocolates in total, how many pieces do you think he bought each chocolate?

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

What is the riddle which can be asked all day with a different correct answer each time.

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?