Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What can you see in the middle of March and April that you can never see in any other month?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

Find the number of squares in the below-given picture.

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

How can a man go eight days without sleep?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.