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?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

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

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Can you write down eight eights so that they add up to one thousand?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?