Since it's my first time at NL100 I didn't have any big sample sizes on villains' stats but in all 3 hands they appear to be regulars.

1) http://weaktight.com/6313532 bottom set, wasn't too happy seeing BTN jam this flop since he probably flats 44/77 and maybe even 65s here most of the time. No 2 pairs in his range on this board and I doubt he flips out with 88-TT here so I can probably fold? Then again I have a set and my line might look a bit bluffy. 

2) http://weaktight.com/6313596 From my experience big raises on monotone boards are rarely ever bluffs and we have the Ah so it's even less likely he's doing this with a flush draw. I'm not drawing dead though. So do I shove the flop and just get it in while my equity is highest, or do I flat this and see a turn?

3) http://weaktight.com/6314644 Wasn't thrilled about the 5-bet but getting 4.25:1 I don't see how I can fold. I take the line that induces the most bluffs and I'm at the top of my range here with backdoor 2NFD. Do you play this any different?