Hand 1: Easy, easy fold considering the risk/reward ratio.

Hand 2: This is very read dependant, against most players I'll call here and re-evaluate the turn (most likely calling one more bet and folding if they fire big on the river), but sometimes I'll three bet here if I think they're on a draw, or call and raise the turn is another line to take if you put him on a draw.

Hand 3: Raise a bit more preflop. And I think posting this hand is a bit ridiculous to be honest. You have to call $8 more to win a $37 pot or so on an extremely dry board with a pretty solid overpair. This is a very simple call, and I'm calling a push here from stacks up to $30-40 with JJ most likely. Once again, these hands are all very read dependant, except for this one. You must call.