[Kumubou]

Hand 1 seems OK.

Hand 2 would be helped by what happened in hand 1... ie, if he's a total nutjob, or if he's aggro with TP, or only gives action on big hands. Regardless, unless he's a nutjob you are correct in folding.

Hand 3 is a situtation I commonly have problems with. I think folding here is correct mainly because your kicker blows. Now if you had K8, it would be worth exploring other options (considering that if he's donking middle pair or better or any pair, you are ahead of his range, where here you would not be).

Hand 4: Raise flop/bet turn/check river would be my default, folding to any more heat (except a flop 3-bet that would get called).

-K