QUESTION: Generate a question with a factual answer?

ANS: What was the practical ceiling of the effective heavy guns?

QUESTION: Generate a question with a factual answer?

ANS: How many episodes did American Idol have each week of the top ten?

QUESTION: Generate a question with a factual answer?

ANS: What famous lampmaker used glass?

QUESTION: Generate a question with a factual answer?

ANS:
What kind of ceiling is in the chapter house?