There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Using Only Five 5's and any mathematical operator make sum as 37

Take away the whole and some still remain. What is it?

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?

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

What has to be broken before you can use it?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?