A nearly impossible logic puzzle. Other mindtwisting puzzles. More puzzles of varying difficulty (don't scroll down too far!). XKCD's take. (previously epic post Also: 1, 2)
posted by desjardins on Jul 30, 2009 - 47 comments

Mark C. Taylor, the chairman of the religion department at Columbia, offers a radical proposal in The New York Times for the restructuring of the American university system. Two key components of the proposal entail ending tenure and shuttering academic departments—replacing disciplines with problems, and then tackling them with a cooperative and multidisciplinary approach, e.g. The Department of the Future of Water made up of geologists, anthropologists, political scientists, and ethicists. Should we End the University as We Know It?
posted by Toekneesan on Apr 27, 2009 - 84 comments

MateMaster. Flash chess problems ranging from "mate in 1" to the fiendish "mate in 6." (via JiG)
posted by juv3nal on Apr 8, 2009 - 42 comments

The Italian Job: Problem Solved
posted by Artw on Jan 23, 2009 - 43 comments