1) minraise
2) 7x and fold to almost all 3bets
3) make it big preflop assuming no heavy 3bettors on your left, smaller cbets as well.
4) false
5) 4BB if the maniac will spite raise us
6) 3betting to 9BB
7) make it smaller to widen the range of hands they play if they are tight
8) probably minraise
9) 2.5x
10) make it huge