Answer:
What is long and slim, works in light. Has but one eye, and an awful bite?
What's as small as a mouse but guards a house like a lion?
What is it that given one, you’ll have either two or none?
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around
I have one door and five rooms what am i
What is so fragile that saying its name breaks it?