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

Take away the whole and some still remain. What is it?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

Which alphabet is a part of our body?

what's the probability of getting a king or a queen from a pack of 52 cards?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?