What is full of holes but still holds water?

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?

What does a man do only once in his lifetime, but women do once a year after they are 29?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

If eleven plus two equals one, what does nine plus five equal?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Complete the table series riddle by finding the number that can replace "??".