A friend of mine told me this riddle last week. I've been obsessing over it ever since with no luck. Seeing it in writing gives me an idea. You say "imagine" you are in a dark room. My answer is to stop imagining.
A riddle, Imagine you are in a dark room with a locked door. All you have with you is a rope and a pencil. You can hear the rain outside, but there are no windows. How do you get out?
Draw a window with the pencil and use the rope as a mean of escape out the window XD