You might want to slow down hands a little tbh. I know you want every spot looked at, but some of these seem relatively standard. If you go over a spot AFTER playing it and still don't know, then post it.
Hand 20: KK, looks like a fist-pump bet/fold and be happy he lets you get away so easily.
Hand 21: AJ, I flop bet is standard, turn bet is fine imo though I check/call sometimes too. As played, I don't see a x/c on the river being super profitable. Like he shouldn't really be value betting worse here ever, and what air does he have aside from maybe 98? I also don't really discount better Ax either. You're UTG. AQ isn't 3betting for value from the button imo, and AK probably doesn't 100% of the time either.
Hand 22: QJs, flop is absurdly overplaying your hand tbh. That's before seeing results fwiw.