Remove two matchsticks to make the below equation correct.

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

I look at you, you look at me, I raise my right, you raise your left. What am I?

What does this say?

XLR8

What can go through glass without breaking it?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What is common among 11, 69, and 88?

Replace the question mark with the correct number in the below-given picture?

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?