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.

Category: EUROPEAN CAPITALS 
Clue: It's home to the Swiss Parliament
bern

Category: ARE YOU A BETTING MAN? 
Clue: C'mon, one more cherry!  Bally's Las Vegas became the first hotel with a $1,000 one of these
a slot machine

Category: ATOMIC WEIGHTS 
Clue: The atomic number of magnesium, or the number of karats in pure gold

24