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: LESSER-KNOWN PROVERBS 
Clue: It specifically "tries truth" as well as generally "tries all things"

SOLUTION: time

PROBLEM: Category: ARCHITECTS 
Clue: Dallas-Fort Worth Airport architect Gyo Obata helped design this Smithsonian museum

SOLUTION: air & space museum

PROBLEM: Category: WHERE DO YOU GET "OFF"? 
Clue: It describes an investment based in a foreign country so its owner laughs at the IRS

SOLUTION:
offshore