TASK DEFINITION: Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
PROBLEM: What physical actress starred alongside John Travolta in Grease?

SOLUTION: olivia newton-john

PROBLEM: 'La donna e mobile' comes from which Verdi opera?

SOLUTION: rigoletto

PROBLEM: In Greek mythology, what is the name of the many-headed monster slain by Heracles?

SOLUTION:
hydra