It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

What has no start, end, or centre?

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

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

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?