QUESTION: Generate a question with a factual answer?

ANS: When was the law of conservation of energy first postulated?

QUESTION: Generate a question with a factual answer?

ANS: For which sports team category does Houston not have a team ?

QUESTION: Generate a question with a factual answer?

ANS: What percentage of the Nicaraguan population are indigenous?

QUESTION: Generate a question with a factual answer?

ANS:
About how many American juveniles have been executed since 1642?