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?

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

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

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

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

If eleven plus two equals one, what does nine plus five equal?

How many times can you subtract the number two from the number fifty?

The more of this there is, the less you see. What is it?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?