When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

Can you count the number of blocks in the picture below?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Why is Saturday stronger than Monday?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

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.