American Mensa Limited, known as the High IQ ­Society, is an organization for individuals who have one common trait: a score in the top two percent on any supervised, standardized intelligence test. For more information about American Mensa or to take the Mensa Home Test, visit www.us.mensa.org/americanway or call (800) 66-MENSA.

Dr. Abbie F. Salny was the supervisory psychologist for American Mensa and Mensa International for more than 25 years. She is the coauthor of the Mensa Think Smart Book. Quiz © 2005 by Dr. Abbie F. Salny and American Mensa Limited from the Mensa Page-A-Day Calendar (Workman Publishing).