MINNEAPOLIS—With the Minnesota Lottery's Oct. 25 "SuperBucks" jackpot fast approaching $140 million, all but the most rational Minnesotans are scrambling to purchase tickets. "Who could resist such an unbelievable jackpot, except, of course, smart people who understand mathematics?" lottery director Gus Shriner said. "I mean, we're talking $140 million. You'd have to be marginally educated to walk away from a $1 chance at that."