We normally answer with no if we are confirming negative questions and yes if we are in agreement with affirmative questions: I'm not coming to the youth club tonight. ~ Aren't you? ~ No, I'm not. I ...

It is important to state, give, name or write down the number of things that the question asks for. If you write down fewer, you cannot get all the marks. If you write down more, and one is wrong, you ...