None. Each lightbulb contains the means of its own revolution.
Fish. I got this from bash.org a long time ago, but I can't find the original post, so have this
Two. One to screw in the lightbulb and another to sing about all the good times they had with the lightbulb.
Two, but how do they get in there
Just one, but he has to see Radiohead do it first.
Czechers.
He gets good marx.
It meant the fall of Turkey, the ruin of Greece, and the breakup of China.
Because it means urine trouble
Well, it's got everyone out and about, celebrating another revolution.....
None - the lightbulb has the capacity for its own revolution
It couldn't contain itself.
An Envelope EDIT: My deepest Canadian apologies to those who are calling this a riddle. I always took it as a cheesy joke