hand 1 you should definitely raise the flop, most likely a push.

hand 3 I don't get. You went for a check-raise, but then didn't make it nearly big enough, especially with the caller between you and the bettor. I don't know that I like a check-raise on this board with TP Q kicker, but if you are going to do it, raise more.
The turn needs a bigger bet as well. Less than 1/2 pot with 2 opps, a flush draw and a straight draws out is just bad. Especially if you intend to put more in on the river.
FWIW I usually pay off the min raise on the river.