So just how logical are you? This 4-card selection task developed by Peter Wason in 1963 will help you find out! All you need to do is assess which of the 4 cards must be turned over in order to determine whether the rule has been followed.
Music: “Brittle Rille” by Kevin MacLeod (incompetech.com)
Music licensed under Creative Commons (http://creativecommons.org/licenses/by/3.0/)
Sunrise footage by Beachfront B-Roll (http://www.beachfrontbroll.com/)
(Image credits coming soon)