Input question: How many hours did Neil Armstrong and Buzz Aldrin spend walking on the moon in 1969?

Output answer: two hours

Input question: Which gemstone is known as 'The Bishop's Stone'?

Output answer: amethyst

Input question: Who played the roles of 'Verbal Klint' and 'Kaiser Sauzer'in the film 'The Usual Suspects'?

Output answer: kevin spacey

Input question: If you were a numismatist, what would you be studying?

Output answer:
coins and medals