None. Each lightbulb contains the means of its own revolution.
None they'd rather keep their clients in the dark.
One.
One. They stick the bulb in the socket and wait for the world to revolve around them!
None, just upgrade to windows
Paint the town red.
Because proper tea is theft.
A big red sports car.
Well a joke that isn't funny, but still is because it isn't. If you know what I mean. These are kind of much easier to remember.
None. The lightbulb contains the seeds of its own revolution.
Both are measured in revolutions per minute.
Your spine.
An Envelope EDIT: My deepest Canadian apologies to those who are calling this a riddle. I always took it as a cheesy joke
