The landing took place on the dark/far side of the moon which never sees sunlight. If the astronauts landed on the near/light side, they would have been cooked.
The lights the doubters say are at a strange angle for a sun and seem like it's from a lamp. That is correct.
The flag waving... it can happen if the astronaut is shaking the flag pole. What happens when you get a string and tie one end to a pole and with the end you're holding, send a "pulse"? It makes a wave shape doesn't it? It would do that, even without atmospheric resistance because what you're saying is the transfer of energy through material in motion.
If the flag is waving while the Eagle is lifting off, then there is resistance. The gasses from the Eagle's exhaust could have been enough to give it "wind" effect.
I've read the doubters stuff on a few websites before and almost all of their questions can be answered quite easily.