Hand 1 - 400NL. I have $361, TAG (17/14/5 or something like that) villain has me covered.

He raises to 16, I opt to just call in the SB with [Kh]
Pot $34 Flop [Jc][7h] I lead $24, he calls.
Pot $82 Turn is a I check-call his $65 bet.
Pot $212 River is a I lead $120, he pushes, its like $130 to me. I call.

Obviously my standard play would be to reraise and bet the flop strong. How do you like this change-up?

Hand 2 - Same villain. Effective stacks are $460 I raise AA to $16 from MP, he reraises to $54 from the BB, I call.
Pot $110 Flop [8d][9h]. He CBs $85, I push.

Standard? Or am I pushing out smaller overpairs to easily here? Would this be better with a flush draw out (so he might put me on a combo draw) and call with QQ/KK?
What if I had JTs and the flop was JTx? I assume since the board pairing sucks and AK/AQ have straight outs we want to play this fast.

Hand 3 - 200NL 3 handed, effective stacks $215. SB raises to $6, I call in the BB with [8d].
Flop is [5d][6d] SB bets $9, I raise to $30, he reraises to $111, I push.

Looks standard to me. Although I am only 32% against a set/straight here...anyone think I should fold this ever?

Hand1. If I just called preflop I would often CR this flop to take a CB from OP. As played turn check is ok, but I don't like river bet I'd rather see a check/call there. (Though I might be result oriented as you are obviously beat when he raises you there.)

Hand2. I like a raise to 200 here, though I don't mind a push too. With a flush draw on board push is obviously much better.
With JT on a JTx board I would play it basically the same, raising to 200. OP would barely have odds to chase his straight if he had KQ and no odds for anything else. If board pairs I could play position and check turn, then use reads.

Hand3. I like it. I guess most of SB range are overpairs and you have like 15 outs against TT-KK.

#1) If you won this hand, the guy is a total moron. I would either bet / fold the river or more likely check / call

#2) Id like to see results for hand #1 before commenting here. if the guy had AQ in hand #1, then I like the push here. Otherwise I just call and get it in on the turn regardless if that it is.

#3) I might fold this one after he reraises, but it depends on a read. If youve been playing 3 handed very long, you should have a good read quickly. I can tell you that your overcards are almost never good here and you have no FE, so youre basically a small dog to most hands he'll have here. (I guess the ace could be good if he has something like JJ and that would make you about even money). Nothing wrong with pushing, just dont expect him to fold.

Hand 1 - I typed "ugh" in the chat box after he shoved. He had AQ. My question is how can I fold this getting like 5-1?

Hand 2 - He folded. I think getting it in on the turn is better most times here. However, the JT example came up against a different opponent at 200NL. I pushed my JTs 2 pair and was called by AK (remember the board was J-T-blank)

Hand 3 - I realized I had absolutely no fold equity, but figured he might be on an overpair here and I would have 15 outs. Turns out he had [4d]. Can't really put him on that, but I had 56% equity here. Funny thing was he hit a K on the turn for 2 pair, and I spiked an offsuit 7 on the river for the gutshot straight.

If he had AQ in hand #1 he sucks big time.

I agree.