Some / Any

We use some and any before countable plural nouns or uncountable singular nouns.

• He gave me some coins. 
• He didn’t give me any coins.
• He gave me some money.

Some

We use some in positive sentences.

• We cooked some cookies. 

Any

We use any in negative sentences and questions.

• She didn’t send me any messages.
• Have you got any brothers or sisters?

❗ But we use some in questions when we are asking for something, or we are offering something.

• Can I have some tea? (=I’m asking for some tea.)
• Would you like some tea? (=I’m offering you some tea.)