Can you make a six-letter word using the letters N, A and B ?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

You can see three almost identical images below. Can you spot the odd one out from them?

What is red and smells like blue paint?

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?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

You see me once in June, twice in November, and not at all in May. What am I?

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

What is the below Rebus indicate?