Answer:
Iβm white; perfect for cutting & grinding. For most animals I am a useful tool.
I'm an old relative who's hand's can't hold anything and eyes canβt see anything
I have a face and two hands, but I have no arms or legs. Six plus seven is one. What am I?
I start in little but I end in full you'll find me in half and complete.
People see through me, but none pass through without killing me. I can be anywhere, and can be seen double or single. What am I?
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?