They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

What is the probability of choosing the correct answer at random from the options below?

a) 1/4
b) 1/2
c) 1
d) 1/4

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

What's the only room from which no one can enter or leave

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

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?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?

Can you count the number of triangles in the given figure?

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