Answer:
What looks back but cannot see?
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
What grows in winter, dies in summer, and grows roots upward?
I drive men mad for love of me. Easily beaten, never free.
To unravel me you need a simple key, no key that was made by locksmith's hand. But a key that only I will understand.
What never gets any wetter no matter how hard it rains?