Third Person omniscient means that the narrator can not only hear the protagonists thoughts but also everyone else. Therefore the story can be told from may different perspectives. Hope it helped :)
The question that leaves Brutus sleep-deprived at the beginning of Act 2 is when he asks Lucius what day it was. It made him awake thinking about his plan to kill Caesar. He thinks that the leader as become corrupt and unreliable.
I believe it would be a soliloquy. A soliloquy is defined as a person speaking to themselves without any regard for someone that may hear it (or oblivious to them).
Sentence 1: Opinion
Sentence 2: Fact
Sentence 3: Fact
Sentence 4: Fact
Sentence 5: Fact
Sentence 6: Fact
Remember, a fact is a statement that can be proved to be true and opinions are what people think.
