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?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

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

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?