[NotSoFarOff]

1) Call pf is fine I guess, but i don't really like. I'm kind of a nit early on because there really isn't much of a reason to start spewing chips, especially since TS tournaments are turboish. I c/c flop, c/f turn on unimproved board.
2) Again, I fold pf. Really no need to start stealing. You're risking 200 to pick up 75 to increase your 5k stack. Unless you know that most of the time you're picking up this pot postflop, fold. Flop is fine. Turn can go either way, but I like the call because you're getting enough implied odds here if you hit. obv fold river
3) wtf there are no antes in the third level. Stop lying. Fold pf, call flop(obv).
4) Call. You're behind AK, QQ-AA. From the CO, there's a pretty good chance he's holding a smaller pair or a lesser ace.