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.

Category: WHADDYA DRINKIN'? 
Clue: A Greyhound is vodka & this tart juice
grapefruit juice

Category: BRAIN STRAIN 
Clue: Appropriately, this stadium has hosted the NFL Super Bowl more than any other
louisiana superdome

Category: DOUBLE "D"s 
Clue: Name given to either of 2 old Icelandic literary works detailing early Scandinavian mythology

edda