Brain Teaser From: http://galileo.org/math/puzzles/JanusUpsideDown.html Janus is the Roman god of gates. He has a two-faced head because from each gate he needs to look in both directions. The first month of the year, January, is derived from Janus, because it is the gateway to a new year. Of course standing at a gate all day is a pretty boring activity for a god, so Janus thought up the following problems. First he placed six of his coins on a table to form this triangle (the 6 six coins in game) Then he tried inverting this triangle by sliding only TWO coins. Because Janus was a smart god, it only took him 1 year to find the answer...
