TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: FORWARDS & BACK WORDS 
Clue: Shrek & "therefore" (follows "cogito")

SOLUTION: ogre & ergo

PROBLEM: Category: BIBLICAL QUOTES 
Clue: Of the forbidden fruit, Eve said, this creature "beguiled me, and I did eat"

SOLUTION: the serpent

PROBLEM: Category: TEEN MOZART 
Clue: From 1769 to 1773 Mozart made 3 trips south to this modern nation where opera was king

SOLUTION:
italy