QUESTION: Generate a question with a factual answer?

ANS: What part of a tree often stays impressively sound even when hundreds or thousands of years old?

QUESTION: Generate a question with a factual answer?

ANS: Which early mammalian ancestor produced non-mammalian Dimetroden?

QUESTION: Generate a question with a factual answer?

ANS: 13th Street is divided into how many parts?

QUESTION: Generate a question with a factual answer?

ANS:
Who was the Sixth US Army Group's commander?