Can you replace the question mark with the correct number in the below table sequence?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

What begins with T, ends with T, and has T in it?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

What is always in front of you but can’t be seen?

What work can one never finish?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

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?