Post date: Jul 3, 2015 7:36:00 PM
Artigo e exercício muito interessantes!
http://www.nytimes.com/interactive/2015/07/03/upshot/a-quick-puzzle-to-test-your-problem-solving.html?_r=1&abt=0002&abg=1
http://theness.com/neurologicablog/index.php/a-quick-logic-lesson/