Answer:
What gets closer when you blink?
Through its wounds, water does run. It once held many but now has none. What is it?
What goes in, but never through? I've got some and so do you. We might lend one, or even two, but only if our trust is true.
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
What doesn't get any wetter, no matter how much rain falls on it?
In your fire you hear me scream! Creaking and whining yet I am dead before you lay me in your hearth.