What is full of holes but still holds water?

In the picture given below, can you find out which digit will take place of the question mark?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

Can you count the number of triangles inside a triangle?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Find the number of squares in the below-given picture.

When it is alive we sing, when it is dead we clap our hands. What is it?