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?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Buy me, smell me or deliver me, I do not change.

Who am I?

Before Mount Everest was discovered, what was the highest mountain in the world?

How is a fly different from a mosquito?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Who has married many women but was never married?

Why do we preferably have round manhole covers and not square ones?

Can you find the 09 errors in the picture below?