1) Fold flop (why are you calling??), raise more on turn. I think river is fine.

2) Fine. Villain is way too short not to get it AI with him.

3) Bet more on flop. Turn is a really really bad spot to bet/3bet. Villain can EASILY have 2 pair or better.

4) Bet more on flop. Slow down after raise. He's most likely not on a draw.

5) Raise flop. I probably stack off too.