A logic puzzle that is attributed to Albert Einstein. You can fill out the table to help to solve the riddle. You can set the desired feature by clicking it several time and then clicking the appropriate cell on the row to its right, so that the feature is entered into the table. Restart with the green flag. The puzzle (and its solution) is available at: http://www.logisch-gedacht.de/logikraetsel/einsteinraetsel/ Have fun.
[English translation of frcroth's project http://scratch.mit.edu/projects/frcroth/1325069]