The anatomy of a trivia question.

Every question has a hook and a pin. Hook is, why would anybody care about this? Why would anybody want to answer it? And the pen is, what is the thing that makes this question have uniquely one, and only one correct answer? So like there is a question in the reall quizzing championship about it a boxer nicknamed the greatest,. i think gave you his birthname, and the fact that he was named sports illustrated sportsmen of the century. But if that's your question, you might have more than one valid answer.