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?

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

There is a place where if I stand up straight, I will still be considered sideways.

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?

Count the squares in the matchstick puzzle below?

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

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

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___