Disclaimer: I do not play at these stakes so all my opinions could be completely wrong.

hand #1 it looks to me like the second Q scared him. If he had the queen he would probably value bet the river since you already checked, or -re-raise you. I would say he has AK, or A5. I doubt betting anynmore will scare him off since you already showed your fear of those QQ. I think I would make a small bet like you did, and fold to a push

hand #2 standard