mathschallenge.netA website dedicated to the puzzling world of mathematicsFour Hats- May 16, 2008 Problem ID: 338 (16 May 2008) Difficulty: 2 starhttp://mathschallenge.net/rss_display.php?titleid=four_hats Two Squares- May 16, 2008 Problem ID: 339 (16 May 2008) Difficulty: 3 starhttp://mathschallenge.net/rss_display.php?titleid=two_squares |