You have a square thin piece of paper, 1-inch side. Can you, using only a blade (or a pair of scissors or whatever), make a hole in this paper and through it pass a solid sphere with diameter, say, 5 inches?

Here's the cutting arrangement: http://www.abc.net.au/science/experimentals/img/episodes/2/paper01a.gif

After cutting like that, unfold and cut on red line:

http://www.abc.net.au/science/experimentals/img/episodes/2/paper02a.gif

Edited on October 2, 2005, 6:30 pm

Posted by The riddler on 2005-10-02 18:05:43