hand 1. push. you likely have 12 outs on a scary board.

hand 2. raise to about 30, call a push.

hand 3. according to his stats, you are playing against a half-retarded chimp. don't fold TPTK in a raised pot vs/ him.

hand 4. I would probably call, but I don't expect to be winning a whole lot.

hand 5. that is one ugly flop for your hand. good bet by opp. I think he puts you in a lose/lose situation here. Sadly, if this were my hand, I would play it on a whim, raising vs. folding.