Some and Any

This is a basic information about the use of some and any:
Some is used in affirmative sentences:
- There are some apples. We can do a delicious pie with them!
- She had been waiting for some minutes.

But any is used in negative and interrogative sentences: 
- There isn't any eggs in the fridge.
- I didn't like his new album, there isn't any nice song! 
- Is there any piece of cake for us tonight?
- Are there any tomatoes to make a salad?


Some is also used when you offering things and ask something. Examples:
- Would you like some coffee? - You are offering some cookies.
- Can you lend some money?  - You are asking for something.


For more explanations and exercises on line, click on Englisch-Hilfen, Better English, and Ego4U.
So that's it!
** I've found another site about the use of SOME, AN, A, check it out on Esl About.