Live hands from Foxwoods this weekend. $1/$2 NLHE.

Hand 1:
Weak-tightie raises from MP, I am in the SB with AA. I have not shown down a hand yet, but have won a couple of pots without showing. Previously, MP called a 25xBB reraise after she raised PF, and has been raising strong hands. Field folds to me, my action?

Hand 2:
10xBB raise from EP/MPish, and an immediate call. I am the button with KK and a stack of about 120xBB. CO raises all-in for about 30xBB. I...?

Hand 3 (this is the really interesting one):
Minraise from somewhere in early position and several cold callers. I am in the SB with AJo and call. BB (a solid player who has taken a few beats and may or may not be steaming) raises to 8xBB. Field folds to me and BB tells someone in EP that he has KQ before I complete my action. I believe him. I had intended to fold, but I call instead. Flop comes JTx. I think, then make somewhere around a pot-sized bet. BB immediately reraises all-in and has me covered. For various reasons I am no longer 100% sure of his holding (estimate somewhere around 70% certainty now), but I am still 100% sure he did not realize there was still a player to act when he announced it. There's a whole lot to think about here, thoughts?