Answer:
What is lengthened by being cut at both ends?
What is long and slim, works in light. Has but one eye, and an awful bite?
As a whole, I am both safe and secure. Behead me, I become a place of meeting. Behead me again, I am the partner of ready. Restore me, I become the domain of beasts.
You heard me before, yet you hear me again, then I die. Until you call me again.
Alive without breath, As cold as death, Clad in mail never clinking, Never thirsty, ever drinking
What never gets any wetter no matter how hard it rains?