I don't want to post anything hard.
So I'll stick to oldies.
A completely dry desert stretches for miles, and smack dab right at the center is a dead man in full scuba gear. Why?
A scuba diver is in the middle of swimming, when, due to an event not unrelated to the upcoming apocalypse, a solar flare hits the Earth and instantaneously evaporates the whole ocean, leaving behind a dead man and a dry desert. Also, it's the end of all life as we know it.
Am I close?