Some random HH's because I'm rusty

I haven't been playing a lot the couple of weeks, so I'm a little rusty in my thinking.
Some HH's here to checks some things.

hand 1
Villain 21/18 over 100 hands, was aggressive in general, stealing like 50% or so, cbeting 80%, 3betting a ton, etc.
I guess my question is do you put a lot of hands worse then Tx in an unknown's calling range on that T turn?

PokerStars No-Limit Hold'em, $0.50 BB (3 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Button ($67.75)
Hero (SB) ($53.20)
BB ($53.50)

Preflop: Hero is SB with A, J
Button bets $1.50, Hero calls $1.25, 1 fold

Flop: ($3.50) 3, Q, 7 (2 players)
Hero checks, Button checks

Turn: ($3.50) 10 (2 players)
Hero bets $2.50, Button calls $2.50

River: ($8.50) 6 (2 players)
Hero bets $6


hand 2
Villain basically completely unknown. At the table for 20h, 14/14/inf on those.
I'm usually lost when I have no idea if my villain is able to c/r gutshot, TP or overpairs (if he has any).

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

UTG ($50.75)
MP ($49.75)
CO ($50.75)
Hero (Button) ($50)
SB ($53.50)
BB ($60.20)

Preflop: Hero is Button with A, A
3 folds, Hero bets $1.50, 1 fold, BB calls $1

Flop: ($3.25) 9, 3, J (2 players)
BB checks, Hero bets $2.50, BB raises to $6, Hero calls $3.50

Turn: ($15.25) J (2 players)
BB bets $12, Hero ...


hand 3
Villain 28/18/2 over 354 hands. He folds his blinds like 75%, so he's calling a lot IP.
He raises 20% of cbets, c/r 16%, so at least for the 50NL's he's playing back light on the flop.

Can I play back?

PokerStars No-Limit Hold'em, $0.50 BB (5 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

UTG ($73.05)
Hero (MP) ($61.40)
Button ($61.50)
SB ($137.70)
BB ($50)

Preflop: Hero is MP with A, Q
1 fold, Hero bets $1.50, Button calls $1.50, 2 folds

Flop: ($3.75) K, 5, 9 (2 players)
Hero bets $3, Button raises to $8.50


hand 4
Villain 31/20 over 84 hands, no reads so nothing special happened between us.
I didn't notice something about his limping range.
This I do a lot and I'm not feeling frisky about it. I'm hitting 3rd pair vs a limper and I c/f the flop because I don't wanna c/c flop and c/f turn.

What's a good approach, just bet all pairs on the flop? Or c/c flop, c/c turn with non-TP hands?
Or bet with TP, c/c flop c/c turn with middle pairs and c/c flop, c/f turn with worse pairs?
(that seems pretty balanced, but it's passive as well, I don't like that OOP)

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

MP ($48.65)
CO ($40.70)
Button ($72.90)
SB ($27.50)
Hero (BB) ($50)
UTG ($50)

Preflop: Hero is BB with 9, 3
1 fold, MP calls $0.50, 3 folds, Hero checks

Flop: ($1.25) 9, A, K (2 players)
Hero checks, MP bets $1, Hero folds

1 - I think theres a bunch of 7x and middling pp´s calling the turn

2 - Safe fold on turn, whatever check raises the flop, his bluffs are slowing down most of the time he gets called

3 - Im pretty bad at evaluating these pissing contests, I just c/f and change seat/table

4 - Im thinking of these spots more like 5 out semis rather than bottom pair and b/f flop c/f turn right away.

1. He probably calls AK/AJ and any pair except 22/44/55.

2. I don't think I'd find a fold at any point.

3. Well you can call and checkshove turn (for value) but I'd probably wait for a slightly better hand for that. Perhaps a pair of some sort.

4. c/f down. You can rep zero out of the top 18 combos.

1. I c/f
2. I want to call turn, fold river to a bet
3. I usually click it back in these spots and fold to a shove but I like P4's line.
4. C/f

hand 1: if river wasn't a 6 (ie: OESD didn't come in), I'd be tempted to c/c here some % of the time.

hand 2: I'd call and re-eval riv. I really don't think he's gonna bet turn, shove river too light. We for sure have Jx in our range.

hand 3: If this is the type of board that we want to play back at if raised, and we expect this type of villain to raise us light. I would cbet smaller. I'd cbet like 2.25, given thats our plan already. He'll bluff raise us more often/lighter probably, so when we play back it will be cheaper and he'll also be folding more often.

hand 4: Feel like he doesn't have strong hands just as much as we don't. We have hands like A6o-AJo that might not even raise PF, while he doesn't. I'm probably leading this.

1- My riverbet got called by KT in hand 1.

2- I folded the turn. This hand I'm the most unhappy about, because AA is still pretty high in my flop calling range and AJ is very unlikely for villain.

3- I think a better bluffcatcher and/or something with more backdoor outs to semibluff indeed is preferable to play back.

4- Still not sure what's best tbh. Our bet isn't getting called by worse (maybe a gutshot, but he'll be winning the pot from us on the turn/river), so it's not really a valuebet. It's basically if we have enough bare FE combined with 5 outs vs better hands.