We normally use "some" and "something" when making requests or offers. "Some" and "something" are used in questions that express requests, such as "Can I have some Coke?" or "Can I have something to eat?". They are also used in questions that express offers, like "Do you want some help?" or "Can I get you something to drink?". The document provides examples of using "some" and "something" correctly in questions to make requests or offers.