One in 3,000,000 has a chance of becoming a human being.
or
Five. One to change the bulb and eleven to say they could do it faster.
or
Cause your the only one Hair.
or
Two — one to screw it most of the way in and the other to give it a surprise twist at the end.
or
Nearly unanswerable, since the one who tries to change it usually drops it, and the others call for a planning session.
or