Official word has come that Red Mango’s first NYC location at 182 Bleecker — long a source of fascination — will open at 4 p.m. on December 6 with “FREE FROZEN YOGURT, GIFT CARDS, GIFT BAGS, MUSIC PRIZES” (emphasis theirs). Obviously they’re trying to trump Yolato which promised free fro-yo at their recent opening only to dole out sample sizes. So will Red Mango be fudging it, too? The publicist assures us “free frozen yogurt” means an honest-to-God half-cup (small-size) serving. We have this on tape (kidding). Gifts, meanwhile, will go to the first 50 people in line and will also be given to people throughout the day, especially people who can answer trivia questions like, “How many calories are in Red Mango?” That we’re not kidding about — so study up!