A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Replace the question mark with the correct number in the below-given picture?

What can you hold in your right hand, but never in your left hand?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

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?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?