Couple of online MTT hands. All comments appreciated !

1.
109$ Party. Blinds 25/50
Folded to LAG button(2100 chips), who makes it 200. Tight SB(1400) calls. I(1100) pick up J10s and push ?

2.
55$ Ladbrokes. On the bubble. Blinds 300/600.
An unknown UTG semishortie(4200 chips) makes it 1800. An usually LAG, but recently (30 hands or so) TAG Button(15000) raises to 4200. I(9000) fold QQ ?

3.
55$ Prima 100k rebuy. 2nd level 15/30. I (2200 chips) raise to 120 with TT from CO. Shortstack Button pushes for 700. BB Maniac?(4 rebuys allready) pushes 1500. I call... ?