Answer:
With a halo of water and a tongue of wood; stone as skin long I stood.
People need me, yet they give me away every day. What am I?
I can run but not walk. Wherever I go thought follows close behind.
I row quickly with four oars but never comes out from under my own roof.
I am a bow that can never be tied or broken but can disappear. What am I?
What is always coming but never arrives?