What has 23 legs, costs $1.10 but brings in a $532,000 windfall? Answer: a bet on 23 college basketball games. A FanDuel bettor found that out last Tuesday when his combination of spread and moneyline bets — at plus-90,869,356 odds — amazingly came home. It’s sort of like trading a quarter-gallon of gas for a Lamborghini Aventador. He would have won even more, but one of the legs — Saint Louis minus-11 vs. against Saint Joseph’s — resulted in a push. Somehow, though, we don’t think the lucky winner is complaining. Headlines— At TheOnion.com: “Beijing streets overrun by hundreds of stray Olympi…