Answer:
I have long legs crooked thighs little head and no eyes.
I am a word. I become longer when the third letter is removed.
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”.
I am cracked by Indiana Jones.
I cause involuntary movements in your vehicle
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.