Richard Nixon and Prince were both born in the U.S.
Both of their last names begin with the letter N.
They were both born in months beginning with the letter J.
If you like, I can check shoe size, favorite toothpaste, and other minutia.
You can find several things common between two people if you dig deep enough, so these types of questions are just a waste of time and any quizmaster who asks this type of question should be flogged.