Who am I?

3. I have many keys but can’t open a single lock.
7. I’m light as a feather, yet the strongest person can’t hold me for five minutes
8. I get wet while drying
9. you can break me, even when you never pick or touch me
11. I'm tall when I'm young, I'm short when I'm old.
12. I have to be broken before you can use me
14. I have words, but never speak
15. I shave every day, but my beard stays the same.

1. i have a head and a tail but no body
2. I have many teeth, but I can't bite
4. I'm always in front of you, yet you cannot see me
5. I follow you all the time and copy your every move, but you can’t touch me or catch me
6. I get bigger when more is taken away
8. I have legs but does't walk
10. I'm full of holes but still holds water
11. You can catch me, but you can't throw me
13. I have a thumb and four fingers, but I'm not a hand
15. I have one head, one foot and four legs