Answer:
I have two bodies joined together as one. When standing still, I run and run. What am I?
If you lose me, you may cause people around you to lose me too. What am I?
I'm white and used for cutting and grinding. When I'm damaged, humans usually remove or fill me. For most animals I am a useful tool. What am I?
I'm written with two letters, said with one and seen with two. What am I?
What do you call a boomerang that doesnβt come back?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.