It is a stormy, snowy day. There is a man dead inside a shack. There are no windows and the only door is locked from inside. There is no way in or out. The man had a stab wound. There is a puddle of water and blood next to him. How did he die?

In this riddle we can conclude that the man stabbed himself with an icicle, this explains the presence of a stab wound as well as the puddle of water from the melted icicle and the blood from the stab.

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