Oh, and movie spoilers, obviously.
-Gandalf was grey/white, and Saruman was white/many-colored. I read that two other wizards were blue. What was the color of the last wizard, and what did the colors mean?
-Gandalf was given a ring by one of the elves. Why? I was under the impression that save for The One Ring, the rings given out by Sauron were to be held by those who original bore them. And if not, why weren't the other rings passed to others/disposed of?
-Why did the ringbearers leave for the Undying Lands? Was it to prevent Sauron's influence from remaining in Middle-Earth, or was it an act of compassion for the anguish they've lived with? Wouldn't bringing Sauron's influence into the Undying Lands be a problem?
-The head orc in RotK was pink and deformed. From my understanding, he was only mentioned once in the books, and never even specified as being an orc. Is there any reference in the books that would hint at where the design or potential backstory could be in the character? An orc/human hybrid or something?
-What would have happened if someone poked Sauron in the eye?
-What WAS the Mouth of Sauron?
-What became of the Horadrim, fleeing orcs, etc after Sauron's destruction?
-What IS the "Scouring of the Shire?" I understand it's the mechanization of the land or something, but what is the story behind it and how does it happen?