Fred Coughlin has a PhD in inorganic chemistry, and has been solving and creating puzzles since childhood. He also published puzzles in The Art of Puzzles and on, and has appeared as a contestant on Who Wants to Be a Millionaire? and Wheel of Fortune. He is happily married, with three daughters who are on their way to becoming avid puzzlers themselves.

American Mensa has members who range in age from 2 to 102, and the community includes people from every walk of life. They include engineers, homemakers, teachers, actors, athletes, students, and CEOs, and all share one trait--high intelligence. To qualify for Mensa, our members scored in the top 2 percent of the general population on an accepted standardized intelligence test.

AARP is the nation's largest nonprofit, nonpartisan organization dedicated to empowering Americans 50 and older to choose how they live as they age. With nearly 38 million members and offices in Read More chevron_right