Answer:
I am a protector of the scoreboard.
My first though water cures no thirst my next alone has soul and when he lives upon my first he then is called my whole.
I may be made of metal bone or wood and have many teeth. My bite hurts no one and the ladies love me.
Why did the computer keep sneezing?
I am a key that is playful. What am I?
Give it food and it will live, give it water and it will die.