Answer:
I am longer than a decade and shorter than a millennium
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?
What is shaped like a box, has no feet, and runs up and down?
Why is leather armor best for sneaking?
I am an English word that is as long as I am valued.
I always murmur but never talk. Always run but never walk. I have a bed but never sleep, have a mouth but never speak. What am I?