Just one, we're stoned not stupid.
Just two, but you're going to need a lot of patience and light bulbs.
One.
None. Light bulbs don't change anything.
You can unscrew a light bulb!
They all just get stoned instead.
The drunk driver will drive right through a stop sign. The stoned driver will stop and wait for it to turn green.
One is good at rolling blunts, the other is good at bowling runts.
A bongoloid.