[Surf]

Hand 1 looks okay.

Hand 2 I would fold the turn. Knowing how he plays draws (does he c-c most?) makes this easier. He's pretty passive, though.

Hand 3 would require a strong read to fold. He could be doing this with weaker aces, and people are prone to doing wacky stuff in blind defense situations.

Hand 4 you could check the turn, depending on your opponent. There aren't too many river cards that can hurt you (though you don't really want to see another broadway) and a number of hands that make you the nuts and him a strong second best. Given your bet and his raise there's very little you beat/tie with on the river (A3-A6 is all) so if he's passive it's a fold, if he's aggressive / tricky i'd call.

Hand 5 looks fine.

Surf