How many sides does a circle have?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?

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 one word does the below rebus identifies?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

What does an Island and the letter T have in common?

You need to remove two matchsticks to make the below equation true. Can you do it ?

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