Yeah i understand hand 1 was probably bad play, so the idea is either raise him to find out where i am (re-raise back to me indicates a fold?) or call him at the river if it looks like a blank?

On hand 3, if i bet more on the flop doesn't that just make me pot committed? I mean it was rainbow, and i thought $5 would entice him to come along with top pair, allowing me to get more money out of him.

I generally find that when someone re-raises with a push like that against me on the flop it's almost always a good hand hoping i'll read it as a bluff or weakness and call, but then i find myself folding a lot to these annoying plays. Of course it's all read dependant but most of the time i have no read or they haven't done it to me before but others at the table have etc...
At this limit is it best just to wait for sets before calling those all-ins, or is TPTK/Overpair sometimes good?

Clar