Where humor is a matter of life and death.
Warning: the following jokes may cause excessive laughter, spontaneous combustion, or existential dread.
The answer to the ultimate question of life and death is: "Pun-ishment."
Why did the existentialist cross the road? Because it was an absurd existentialist, and it had to.
The joke is not only dead, but it has also been replaced with a better, more incongruent joke.
The joke is not only dead, but it has also been replaced, again, with an even more incongruent joke.
(This is getting ridiculous.)