If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?