Make up 5 questions: My father used to play tennis when he was a child

Question

Make up 5 questions: My father used to play tennis when he was a child

Answer 1

Whose father used to play tennis when he was a child?
Who used to play tennis when was a child?
What did your father use to do when he was a child?
Your father used to play tennis, when he was a child, didn't he?
Did your father use to play tennis when he was a child?