The first hand I would lay down for sure.
This hand does not need to affect you that much. No need to gamble, you are better than the others.

The second situation I would push. QQ is a strong hand to go against someone who it looks like was trying to make an isolation play. He probably has TT or AK, AQ.

The last hand, I would definately call the all-in, he could be pushing with much weaker hands.

-MG