Riddle: you are stuck in a room. there is one door but it is locked from the outside and there is a small heat vent that is not on. all you have in the room is your pet mouse. all that is on the outside is a ladder and chesse. how do you get out?
Answer: before you got locked in you trained your mouse. you tell it to go in the heat vent and told him to find is way to the chesse and then he has to climb the ladder and unlock the door.