What Am I Riddles

Question: I cannot speak but i tell everything.Im not a tree but i have a leaves. I have hinges but neither not a door nor a window. Who am i?

Question: ***What can so easily be broken and could never be spoken?***

Question: What beats but inflicts no pain?

Question: What white coat lights up and is hot to the touch?

Question: When people cut me, I do not bleed. They use me, but then they leave. I die, but then revive. I change my appearance as time goes by. What am I?