Only if you are talking about a specific person. If you're writing "US Attorney General Eric Holder, Jr.," then it should be capitalized. If you're just referring to one of many positions of attorney general with no name attached, it should be lowercase--e.g.: "When I grow up, I want to be an attorney general."
No. The term is an official title and should be capitalized. e.g. "The new Ohio Attorney General announced the ruling."
The specific title "attorney-at-law" is hyphenated, not attorney.
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
No, "homework" shouldn't be hyphenated.
All-consuming is hyphenated
Yes, end-product is hyphenated. It is a noun and treated as one word which is hyphenated.
The synonym for sleeping is not hyphenated, just "subconscious".
negative
It is not hyphenated.
Motorcycle is not hyphenated
No it's not hyphenated.
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
No, "hardworking" is not hyphenated.
Yes it should be hyphenated.
It can be. Some words can be seen both hyphenated and non-hyphenated.
"Field" is not hyphenated.
No they shouldn't be hyphenated.
No, "homework" shouldn't be hyphenated.
All-consuming is hyphenated