Does oil painting need turpentine?

Related questions

1. How long do oil paintings last?
2. Do oil paintings ever dry?
3. Do oil paints smell?
4. Do you need oil for oil painting?
5. What happens if water gets in your oil?
6. Can I paint over a varnished oil painting?
7. Is linseed oil necessary for oil painting?
8. Is there an app that if you take a picture of something it tells you what it is?
9. Do oil paintings darken over time?
10. Is oil paint waterproof?

Tags

1. #other
2. #necessary
3. #turpentine
4. #because
5. #crack
6. #thinners
7. #paint
8. #medium
9. #likely