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?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

What Time Should the last watch show in the below figure?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

I have no life, but I can die. What am I?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

People put me on the table and cut me but do not eat me. What am I?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?