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?

Make a sentence consisting of three words that have the whole alphabet.

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

Aman has 1.15 rupees in his pocket. There are a total of 6 coins in his pocket.

When his friend asked him for a change, he could not give change for a rupee and five paisa.

Can you tell which coins he has?

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?