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?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Which is heavier: a ton of bricks or a ton of feathers?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

An apple seller is hosting a competition. He offers 1000 apples and 10 boxes to the people who pass by. The challenge is to put those 1000 apples in the 10 boxes in such a manner that if he asks for any amount of apples, the person can directly give him the boxes or a combination of boxes. If the person can do it, he promises to give a thousand apples for free.

If you happen to pass by the apple seller, will you be able to win a thousand apples?

What part of Turkey has the most feathers?

What does below rebus means ?