None. The lightbulb contains the seeds of its own revolution.
No one knows - every time they pick one up, they end up giving it away.
A: Er two. Or maybe one. No --- on second thoughts make that two. Is that okay with you
How many data wranglers does it take to change a lightbulb? Just one, but they need a backup.
He Brexit!
It caused a revolution.
an Envelope EDIT: My deepest Canadian apologies to those who are calling this a riddle. I always took it as a cheesy joke
Spine
None comrade, the bulb holds the seeds to its own revolution!
A: None: The light bulb contains the seeds of its own revolution.
