Answer:
You heard me before, yet you hear me again, then I die. Until you call me again.
Useful tool for who in darkness dwell. Within you, corrupting like a deadly spell.
A great mysterious place that the bold have been known to journey into.
My life is often a volume of grief, your help is needed to turn a new leaf. Stiff is my spine and my body is pale. But I'm always ready to tell a tale.
If a man carried my burden, he would break his back. I am not rich, but leave silver in my track.
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?