1st hand fold. If he's decent I can call his hand, KQd or 87d. unless you have a read.
2nd hand it's questionable but I'd check fold after the 9 comes. it really looks like A2 that he didn't want to lay down on the turn.
3rd hand is fine but I may check the flop there, you could see more what hands you're dealing with. However I wouldn't be suprised to see AA from UTG+1, he has either that or my guess is A9.