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?

What does does this rebus picture means ?

Can you make a six-letter word using the letters N, A and B ?

What jumps when it walks and sits when it stands?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Prove that twice of ten is the same as twice of eleven.

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

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

Can you count the number of matches in the picture below ?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?