Answer:
In a tunnel of darkness lies a beast or iron. It can only attack when pulled back. What is it?
I can wave my hands at you but I never say goodbye. You are always cool when with me even more so when I am high!
I am a vegetable that bugs stay away from
What has banks but no money a bed but no sleep waves but no ocean?
My first is second in line; I send shivers up your spine; not quite shining bright I glitter in the light.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.