A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

Can you name an animal whose killing cannot be performed without spilling your own blood?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

You need to remove two matchsticks to make the below equation true. Can you do it ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

It belongs to you, but other people use it more than you do. What is it?

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?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

I taste better than I can smell. Who am I?

What occurs twice in a week, once in a year but never in a day?