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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: SLEEP 
Clue: Normally this activity is harmless, but make sure the person doesn't fall down the stairs

SOLUTION: sleepwalking

PROBLEM: Category: ANIMALS 
Clue: Types of this aquatic creature include chimney, sheep's wool, and common bath

SOLUTION: the sponge

PROBLEM: Category: DUMB GUYS' GREATEST INVENTIONS 
Clue: Dumb guys think it's cool they get to slide their own credit card at the store; even cooler? This word for "slide"

SOLUTION:
swipe