In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

What is at the end of a rainbow?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Which number comes next in the number series?

2, 9, 30, 93, ?

They are three errirs in this question. Can you find them?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

I always drive my customer away.

Who am I?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?