Yes, "special-needs" is a hyphenated adjective. The two words do not separately modify the subject.
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".
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.
Yes it should be hyphenated.
All-consuming is hyphenated
No, "homework" shouldn't be hyphenated.