Answer:
I am a box who holds keys but not locks. With the right combination I may unlock your soul
I am the ultimate killing machine used not once but TWICE I can be made by humans.
My teeth help me suck.
I can speak with my hard metal tongue. But I cannot breathe for I have no lung
I run around the streets all day. Under the bed or by the door I sit at night, never alone. My tongue hangs out, waiting to be fed during the day. What am I?
I am used for light yet I am solid. Without me you would feel enclosed. I hate being touched especially with a lot of force. I like to be in buildings.