In "The Wizard of Oz," Dorothy is told, "Pay no attention to the man behind the curtain." Perhaps Dorothy should play the Pennsylvania Lottery. Things are not what they have seemed. That midday lottery drawing, which is advertised for the three- and four-digit numbers as occurring at 1:35 p.m., actually happens at about 1:10. Moreover, if you are a gambler who thinks that balls come down a tube -- as they do on the live TV broadcast in the evening -- then brace yourself for another surprise: The midday numbers are drawn randomly by a computer program, despite the impression...