Back to back

I was playing some 2NL on Pokerstars yesterday (I was pretty tired, so I didn't feel like playing 10NL) and after about an hour I was stuck a little as I wasn't getting any good starting hands and was missing a lot of flops.

I was already thinking stars had decided to just give me no cards at all and I figured I was probably going to get cold-decked on my first big hand :)

Then a funny thing happened: I got QQ on one table, AA on another and TT on a third table at the same time.
TT: I raise a bunch of limpers from the BB and take down the pot preflop.

QQ: I openraise from the BTN and take down the blinds.

AA: I raise from MP to 4x and get two callers. Flop comes 347 with two clubs.
Now the BB bets out $0.10 into a $0.25 pot. I really don't like this flop and the donkbet. Sure he'll probably be on a draw, but at these limits, it's going to take a big raise to make him fold his draw, plus I have another player behind me. I decide to play it cautious and just call. The third player now raises to $0.20 and the BB calls. I really don't know what to make of that minreraise, but the pot is getting big already and I decide to fold (very weak play, I know, but I had a bad feeling about this hand.) Anyway, the turn is another 7 and now the guy in LP bets big and takes it down. I guess he had at least top pair on the flop, possibly even a set.

The very next hand on the QQ table I get QQ again, back to back (and take down another small pot).
And... the very next hand on the AA table I get AA again, back to back (just thought that was pretty funny). I raise again, this time to 5x and get one caller. The flop comes Kxx, I bet halfpot, villain reraises and I shove and felt the villain who had, get this, K6o. So, aces and queens back to back at the same time :)

I had another hand from a previous session I'm not sure about how I should have handled it:

10NL, I just sat down at the table (in fact it was my first hand at that table)

Villain with a stack of about 65BB UTG raises to 5x (which is definately more than usual).
I have AKo in the BB and call (a mistake, I probably should have reraised there).
Flop comes Kxx rainbow and I check.
Villain makes a potsized bet that I flatcall. The pot now is $3.
The turn is a low and second club, I check again and now the villain shoves.
I'm almost getting 2 to 1 here and don't know what to do: if he's a good player, he most likely has AA, KK, AK, maybe KQ and once in a blue moon Ax with with a FD. If he's a bad player, he could be doing this with QQ, JJ, TT, figuring my calls are weak. In the back of my mind, I knew I was in trouble, but given my pot odds I couldn't lay down TPTK. He shows AA and takes it down.
Is this an auto-fold or would you call as well?