Hand 1 actually looks like a good spot because he might actually lay down AK here since he not only has to call the turn bet, but also a possible river bet. In fact, just put in a bigger bet on the turn and give up on the river since the turn is the best time to do this. He's calling you down with the jack, but he might lay down a king.

Hand 2, throw away AJ to a raise imo you're dominated here a lot. 15/10 is not raising AT0 from MP.

you have two hand 2s, I like floating in the second hand 2 because someone who doesn't have a jack might give up on the turn and if you're going to bluff, it's much easier to bluff after someone checks into you

hand 3: this guy is loose PF so probably loose post-flop he might call you down with 66 here, no use trying to bluff someone loose

hand 4: I wouldn't take that shot on the river, I doubt he has the flush draw, more like a jack or a 9 so if he calls you on the turn he's probably calling your river bet
hand 5: again, not betting the river unless I think he's drawing to a flush