I have an eye but still cannot see.

Who am I?

What do you see in the image below

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

I add 5 to 9 and get 2. The answer is correct, so 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?

What work can one never finish?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

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