QUESTION: Generate a question with a factual answer?

ANS: What sort of sound does the music of Susan Boyle have?

QUESTION: Generate a question with a factual answer?

ANS: What use of unmarked cars is controversial?

QUESTION: Generate a question with a factual answer?

ANS: The book's availablity increased through inclusion in what book service?

QUESTION: Generate a question with a factual answer?

ANS:
What did Templeton argue is necessary to impose a threshold on for a population to be a subspecies?