I am looking for The Missing Dollar Problem. I have a group of kids that will find this one "interesting". I have searched high and low around this house, and the problem is no where to be found. I am hoping that someone on list will have it and post it.
I am not sure exactly how it goes, but The Missing Dollar Problem is unsolvable. It starts out describing a man who is paying his hotel bill. He has $30 and the bill is $27. He tips the bellboy, and somehow gets some change. When it is all done, he is short a dollar.