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

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

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?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.