Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

A blonde put eyeliner on her head. Why?

How can one talk without saying a single word?

The more it dries, the wetter it becomes. Can you tell what it is?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

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?