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: NORSE 
Clue: Skoll & Fenrir, both this type of fierce canine, will cause mayhem at Ragnarok, the end of the cosmos

SOLUTION: wolves

PROBLEM: Category: CUBA, SI! 
Clue: Turquino Peak, Cuba's highest, is in the chain known as this "Maestra"; California has one "Nevada"

SOLUTION: sierra

PROBLEM: Category: I'LL BE YOUR WAITER 
Clue: On Nov. 4, 1605 this Brit was lying in wait to use more than 20 barrels of gunpowder on Parliament; never got the chance

SOLUTION:
guy fawkes