What brings you down but never up?

What 5-letter word typed in all capital letters can be read the same upside down?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

How can one talk without saying a single word?

What jumps when it walks and sits when it stands?

Can you identify the Oscar-winning movie from the rebus below?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

What do you get if you add 2 to 100 four times?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

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?