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: Because the fourth movement is a variation on one of the composer's earlier works concerning a particular creature, by what name is Franz Schubert's 'Piano Quintet in A major' better known?

SOLUTION: trout quintet

PROBLEM: What word is used in mathematics to mean if and only if?

SOLUTION: if and only if

PROBLEM: Pattaya, Phucket and Koh Samui are tourist destinations in which country?

SOLUTION:
thailand