• Some and any are used with countable and uncountable nouns, to describe an indefinite or incomplete quantity.

• Some is used in positive statements:

        I had some rice for lunch.

• It is also used in questions when we are sure about the answer:

          Is there some fruit juice in the fridge? (=I think there is).

• Some is used in situations where the question is not a request for information, but a method of making a request, encouraging or giving an invitation:

           Could I have some books, please?

           Would you like some books.

• Any is used in questions and with not in negative statements:

           Have you got any tea?

           He didn't give me any books.