IQ Tests

ALL of Our IQ Tests

9 Question IQ Test

9 Question IQ Test This is a very difficult test originally published as a puzzle contest in Vidya, the journal of the Triple Nine Society.

SPECIAL NOTE: Unlike most of our tests, this one is "open book", so you may use offline and online resources (books, web searches, etc.) to solve these problems, but please do not use the help of anyone else (online or offline), and please do not take this test if you have seen the answers to it (in Vidya or anywhere else).

Some of the problems are very difficult, and several may contain words, names or terms with which you may be unfamiliar. Be sure to answer every problem, even if this means guessing on some problems. There are no penalties for guessing.

There is no time limit. For most tests on we recommend you spend no more than 1 or 2 sessions before submitting your answers, but this test is hard enough that you may want to spend more time than that to maximize your score.

NOTE: Correct spelling is REQUIRED for your answers to be counted correctly. Our system will only count correctly spelled answers. If in doubt, always consult an online or offline dictionary or encyclopedia.

Your estimated IQ score, general population percentile ranking, and the answers to the problems are all provided when you complete the test.
Would you like to archive the results of this test in a personal account? If so, please login or register below.
Login (Return Visitors)
Register (New Visitors)
(Please note: Your score can only be recorded the first time you take a test. Subsequent scores will not be saved)