Answer:
What belongs to you but others use it more than you do?
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
I am a word of six; my first three letters refer to an automobile my last three letters refer to a household animal my first four letters is a fish. What am I?
I am the beginning of eternity the end of time and space the beginning of every end the end of every place.
I lose my head in the morning and regain it back at night. What am I?
Give it food and it will live, give it water and it will die.