What does this simple rebus mean?

What can you see in the middle of March and April that you can never see in any other month?

What am I?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

What time is it when an elephant sits on a fence?

Which Burger Is Different in below image?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

Find out the number of circles in the given picture having Illusion

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?