Answer:
I can run but not walk. Wherever I go, thought follows close behind.
A horrid monster hides from the day, with many legs and many eyes. With silver chains it catches prey. And eats it all before it dies. Yet in every cottage does it stay. And every castle beneath the sky.
What building has the most stories?
What is it that has four legs, one head, and a foot?
People are hired to get rid of me. I'm often hiding under your bed. In time I'll always return you see. Bite me and you're surely dead.
What is so fragile that saying its name breaks it?