Riddle: A man is lying, stabbed to death, in his chateau during the dead of winter. The only clues to the mystery of his death are an open window, and a cup of bloody water at his bedside. How did he die?
Answer: The man broke off an icicle from the window of his cabin, stabbed himself, and then placed the icicle in the cup. The icicle melted into bloody water after the man died.