Humpty Trumpty wants Mexico to pay for it all.
or
Because all his uncles were "ants"!
or
6: 2 to screw in the bulb and 4 to testify that it was lit from the moment they began screwing.
or
Catch it in the Winter!
or
Nearly unanswerable, since the one who tries to change it usually drops it, and the others call for a planning session.
or