‘Experience the Mystery’ at the always prestigious and humanitarian Alzheimer’s Association Rita Hayworth Gala, which will be endorsed by Rolex Watch USA, honoring Naeem & Ranjana Khan with Rita Hayworth award and G. Marlyne Sexton with philanthropy award at Waldorf Astoria’s Grand Ballroom Tuesday, October 26th- 6:30p for cocktails and private auction. Award presentation, dinner, dancing and schmoozing at 7:30p. And yes, it’s Black Tie. (212) 843-1712. Go.