[aK13]

Hand 1: I probably wouldn't raise 99 against this many limpers, and I'd pull a check/raise on that flop.
EDIT: I guess you can't check/raise on the button -_-. I'd raise a late position bettor.

Hand 2: raise the flop to pump your draw (you've got the entire field trapped for an extra bet).

Hand 3: Dump your hand when the river is 2 bets back to you.

Hand 4: Fold preflop. I'd be 3betting that turn also.

If this happened to you all in one session, that is some serious [censored] luck.