- 07:25, 9 February 2010 (diff | hist) . . (+49) . . MA 265 Spring 2010 Walther Riddles
- 07:24, 9 February 2010 (diff | hist) . . (+162) . . N MA 265 Spring 2010 Walther Riddles (New page: if you have 8 balls, of which one weighs slightly more than the others, and you have a balance. how can you find out which one is heavier using only 2 weighings?)
- 06:58, 28 January 2010 (diff | hist) . . (+145) . . MA 375 Spring 2010 Walther Discussion HWsolutions