Three. One to change it while the other two argue about how old the old one is.
5/3. The same amount as for whites.
None, they just make the nepalese do it.
A: Scotsmen don't change light bulbs it's cheaper to sit in the dark
Twelve. One to change the bulb and eleven to do the paperwork.
Someone whose career is in ruins.
Old.
Seven. One to install the bulb and six to figure out what to do with the old one for the next 10,000 years