1.He is a man named Jim, is he an honest man?
=> Two subject-verb pairs means two clauses.
=> He is a man named Jim. Is he an honest man?
2.I asked him, "Where do you live?"
=> Use a comma before reported speech.
3.I asked him where he lives.
=> where he lives functions as an object; e.g., I asked him about his life; I asked him for a book; I asked him to help me.
4.Where do you live, how do you live and where are you from?
=> Three clausal units; e.g., three noun units: I want a book, a pen and some paper.
5.I want to say that do we need food to live?
=> I want to say do we need food to live?
=> I want to ask if we need food to live?