What work can one never finish?

I can write cow in 13 letters.

Can You?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

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

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?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

Why Aeroplane windows are round?

Count the number of balls in picture below: