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?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

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 ?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Can you tell a 3D object that has just two surfaces?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

When is the top of a mountain similar to a savings account?

What work can one never finish?

What you cannot hold but it is yours?