I am quite hot but become too cold if you remove the first two letters. What am I?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

Take one out and scratch my head, I am now black but once was red. What am I?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

what does this picture(rebus) riddle means ?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

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?