What does this rebus puzzle means ?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Can you solve the below tricky visual equation?

Count the number of balls in picture below:

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

This was asked in an interview with Coa-Cola.

The interviewer has given me 100 marbles(50 white and 50 black) and two empty boxes.
He then told me that he will leave the room and i need to place all the marbles in two boxes.

And When he come back, he will draw a marble from any of the two box and if the marble is white I will be hired.

Also
* No box can be empty.
* All 100 marbles must be placed in one of the two boxes.

So what should I have done?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Prove that the below maths equation is true.

8 + 8 = 91

What is 3/7 chicken, 2/3 cat and 2/4 goat?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?