CWI's Barry Koren wrote, together with three co-authors, a book on the seven greatest puzzles in mathematics - called  “De zeven grootste raadsels van de wiskunde” - 'solve them and you will be a millionaire'. In his last week as a researcher at CWI, he presented this book on Radio 1 together with Jan van de Craats, in the radio programme Met Het Oog Op Morgen, on 30 August 2012, from about 23.35 - 23.45h.

More information: http://weblogs.nos.nl/methetoogopmorgen/2012/08/30/donderdag-1-miljoen-dollar-per-opgelost-wiskunderaadsel/

Radio interview around 23.35h on: http://www.radio1.nl/terugluisteren/programma?programme=nosmethetoogopmorgen&day=2012-08-30 

Cover of the new booklet on the greatest math questions of our time