QUESTION: Generate a question with a factual answer?

ANS: What was the mortgage delinquency rate in 2008

QUESTION: Generate a question with a factual answer?

ANS: How long was Nanjing ranked as "severely polluted" during this wave?

QUESTION: Generate a question with a factual answer?

ANS: Which two companies produced E6 films meant for "pushing"?

QUESTION: Generate a question with a factual answer?

ANS:
What caused the death of Emperor Auranzeb?