It all seems electrical. My front passenger window doesn't work. It is stuck up which is good. When I hit the switch I hear a click but nothing happens. Is that a deaf motor?

My rear passenger lock makes the most annoying loud buzzing noise. Sometimes it gets stuck. What is up with that?

My rear defrost seems to work SOMEWHAT??? It doesn't melt snow or ice but the window was foggy so I hit the defrost button just hoping somehow it would work n sure enough it got rid of the fog. I dont think the grid is bad because I saw all the lines getting rid of the fog. What could that be?