Spuuky:

It is classified as Unknown.
1. Is it usually colorful? No.
2. Was it invented? No.
3. Does it move? Rarely.
4. Is it smaller than a golf ball? No.
5. Do you chew it? No.
6. Do you use it at night? Yes.
7. Does it have physical substance? Sometimes.
8. Does it get wet? Sometimes.
9. Is it usually visible? Yes.
10. Can it scratch? Yes.
11. Is it considered valuable? Depends.
12. Can it bend without breaking? Partly.
13. Do you use it at work? Yes.
Is it hard? Unknown.
14. Do you hold it when you use it? No.
15. Are there many different sorts of it? No.
16. Is it used during meals? No.
17. Is it usually warm? Probably.
18. Can you walk on it? Yes.
19. Do you clean it regularly? No.
I am guessing that it is charcoal?