[DeuceKicker]

Hand 1 is one of those hands where your read trumps default advice. If you had no read on Villain2, I'd say you failed to think about what he was cold-calling with on the flop. Very often it's a flush or OESD. Since there was no flush draw on the flop, you have to be wary of a card that completes someone's OESD, which the Q does.

Your read is that he might overvalue something like two pair, but I still think it's more likely that he made the straight. That, added to the fact that your set is bottom set, and I'd bet/call the river.

If you bet/raise/call you're giving him two extra bets when he has you beat, but only extracting one extra bet from him when you're best.

I think Hand 2 is fine. The way you word it makes it seem that you had the best hand, but don't be results-oriented. The obvious draw got there and he raised, so just call.