Hand #1: I still check on the river. He's almost never doing this with a pair of queens since there's only one more out there. He either has a 9 or a bluff. A 9 will still be betting the river and a bluff isn't calling any bet so hope he has the balls to fire a 3rd barrel.

Hand #2: wtf at checking back the turn and wanting to raise the river? Bet turn/ bet river, fold if raised.