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:  'Hey Ya' was a 2003 hit for which US duo?

SOLUTION: outkast

PROBLEM: The Fairy Queen is a work by which composer?

SOLUTION: purcell

PROBLEM: Mare Australe can be found where in the Solar System?

SOLUTION:
the moon