One. Vegans have the same capability of changing a lightbulb as non-vegans.
None, that's a hardware issue.
A: None. Each lightbulb contains the means of its own revolution.
Just one. He holds the bulb and the room spins.
Two. One to change the bulb and one to sing about how grand the old bulb was.
Don't worry, they'll tell you.
Waking up at 5 am to milk the almonds.
It's non barking! Hopefully some software people get this one
The temperature of their caffeine
