2 different tests! And... IQ average ;) +39 Questions to get your IQ! Mensa IQ test. +33 Questions to get your IQ! European IQ test. With solutions! An intelligence quotient (IQ) is a score derived from one of several standardized tests designed to assess intelligence. The abbreviation "IQ" comes from the German term Intelligenz-Quotient, originally coined by psychologist William Stern. Measure your iq! Easy and accurate! Try it!