1) If you don't know what you want to hit the flop, your best off folding.
2) Must fold. No way he does that with anything other than KK/AA. If he does, more power to him.
3) Absolutely fine. If you only bet $10 you're giving him odds to call (assuming he's on a flush draw).
4) A low flush will fold that. (I would if I had a T high flush).
5) You can always try checking the river hoping he'll toss in a bet thinking you've missed.
6) Given your stack size (you should really be closer to a full buy in) you must push the river. The only hand he has that beats you is a flush, and that's doubtful. Way too passive.
7) Villian wanted to fold, but you wouldn't let him. I don't put him on a T, but he puts you on AK (or so). 1/2 pot bet on turn/river would have gotten him to fold. If I called that bet with JT and a K fell on the turn and you bet 1/2 pot after a preflop raise, I'd have to fold.