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

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?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

A Detective reviewed the information they had on the case so far.

A lady named 'Caterina' was found shot and they already had a list of suspects - Ankit, Tarun, Harish, Manoj and Manish.
The killer is a fan of challenges him by leaving notes ad various places.
* The first was found in a toilet room.
* The second was found in an art room.
* The third was in a restroom.
* the fourth in an underwater room.
* The fifth at the no-smoking room.

All of the notes read the same thing, 'The clues are where you find the notes.' Yet, nothing was found at any place the notes were.
Detective the genius, immediately solved the case.
Who was the killer?