Obscure light-bulb jokes:

Q: How many existentialists does it take to change a light bulb?
A: Two: One to screw it in and one to observe how the light bulb itself symbolizes a single incandescent beacon of subjective reality in a netherworld of endless absurdity reaching out toward a maudlin cosmos of nothingness.

Q: How many Welsh mothers does it take to change a light bulb?
A: “Don’t worry dearie, I’ll just sit here in the dark, alone.”

Q: How many Marxists does it take to change a light bulb?
A: None: The light bulb contains the seeds of its own revolution.

Q: How many Greek Orthodox priests does it take to change a light bulb?
A: What do you mean, “change”!?

Q: How many Spaniards does it take to change a light bulb?
A: Juan.

Q: How many Zen masters does it take to change a light bulb?
A: A tree in a golden forest.

Q: How many postmodernists does it take to change a light bulb?
A: In a Derridaist reading, wherein light is a social construct, there is a dialectic between Darkness as a reality and reality as a mode.

Q: How many surrealists does it take to change a light bulb?
A: Fish.