Hand 1: Standard. Calling here sucks if a 2 or 4 comes off because even if Villain doesn't suck out, he's not putting in much more with a bare Ace.

Hand 2: Betting or checking is okay here. I might actually check since there aren't many cards that will be suckouts, but there are plenty of overcards that Villains could hit to give you more action.

Hand 3: Standard. Never check here, ever.

Hand 4: Again, if Villain doesn't have something he's going to call with here (that you beat), then there probably aren't any cards that can come that will give him a good enough hand to call a bet that you still beat.

Hand 5: This is fine, and is the most interesting hand so far imo.

Hand 6: Super standard.

Hand 7: See hand #2.

Hand 8: You played the flop well (no sarcasm). Standard as well.