Hand 1: I'd bet the flop and if raised I call. Turn is a lot harder. With what hand could i have raised preflop, not capped the flop and now being helped by a jack? AA, KK, QQ, JJ, 99, AJ, KJ? All those hands would have capped the flop I think. My most probable holding must be AK, AQ, QT, TT and then I'm not happy about the turn card.
My opponent could still be behind. QT and T8 are two possible hands but no hand he could have raised the flop with would he lay down now to a bet. My chances of taking down the pot on the turn are microscopic and besides I'm out of position. Since I caught neither a A, Q or a club I guess it's a check/fold. Don't believe the pot is big enough to waste two big bets to hunt a showdown of 6 outs where I could already be drawing dead.

Hand 2. Flop is fine, but I think I'm calling down from turn and on.