Cool math games, post 25

Author, at left, dressed as Kitty Cocktail in vintage flapper dress ...Image is from: http://diydilettante.wordpress.com/tag/detective/Yard sales | NormanomiconImage is from: http://thenormanomicon.wordpress.com/2010/09/18/yard-sales/What We Have Done | Snnhead2k10's BlogImage is from: http://snnhead2k10.wordpress.com/what-we-have-done/line divider | Point Pleasant Borough High School Media CenterImage is from: http://pointpleasantmediacenter.wordpress.com/pathfinders/line-divider/What We Have Done | Snnhead2k10's BlogImage is from: http://snnhead2k10.wordpress.com/what-we-have-done/Chess Music Maths and the Arts | ChessaleeImage is from: http://chessaleeinlondon.wordpress.com/2011/04/13/chess-music-maths-and-the-arts/Weslandia | superspaghettisImage is from: http://superspaghettis.wordpress.com/weslandia-2/Gowalla in Higher Education | I've moved to PROFESSORJOSH.COMImage is from: http://professorjosh.wordpress.com/2011/05/16/gowalla-in-higher-education/Is the cereal mixed with water attracted to the magnet? Not really ...Image is from: http://chickadeebungalow.wordpress.com/2012/04/06/week-twenty-five/