Answer:
I always run but never walk often murmur but never talk have a bed but never sleep has a mouth but never eat.
I wiggle and cannot see; sometimes underground and sometimes on a tree. I really don't want to be on a hook and I become a person when combined with “book”.
Whoever makes it tells it not. Whoever takes it knows it not. Whoever knows it wants it not
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
I'm a kind of cup that doesn't hold water, but makes a lot of noise repeatedly. What am I?
I am a animal that is cute but dangerous, what am I?