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 ?

Can you find out the remainder when 3^300 is divided by 5?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?

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

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

Find the last number in the series below:

voN luJ yaM raM ---

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?