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This compiled list contains tests of all types, some of which were written by the best authors I've met and some were taken from popular websites. A few serve as entrance exams for several of the existing high IQ societies while others are tongue-in-cheek quizzes which should be taken with a grain of salt. The important thing to remember is this: if you want an accurate assessment of your intelligence, find a professional psychologist who can administer a supervised IQ test. Some of these tests are more accurate than others having undergone rigorous statistical work and most will give you a rough estimate of where you fall but to be absolutely sure, you need to consult a professional. There are simply too many methods for cheating on web-based IQ tests that tend to taint the norming process. 

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Random IQ Test - Different IQ tests each time you refresh the page!

Lateral Thinking Puzzle IQ Test

Lateral Thinking Puzzle IQ Test II

Enigmus Analogies Test - The following verbal analogies will quiz your intelligence. 

The Nachbar-Smith Test for Eclectic Reasoning Abilities  - An self-grading IQ test written by Thomas Allen Smith Jr. and Paul Nachbar. 

Oracle Exam  - This fifteen-item test consists of problems roughly measuring general knowledge and cognitive ability. There is a twenty minute time limit and no discussion with others or use of reference materials is allowed. All calculations must be performed mentally. 

Tests by Thomas Allen Smith Jr. 

Carolina Intelligence Test - This test is designed for your amusement only. There is no time limit and you may use any means possible to find the answers (except by discussing the problems with others). A grading scale along with the answers is provided on a separate page. Good luck!

Enigmus Analogies Test
 (NOW AUTOMATED AT ALLIQTESTS.COM)- The following verbal analogies will quiz your intelligence. 

Enigmus Analogies Test Part II - Comprised of the expired daily analogies posted at Enigmadness.com, the Enigmus Analogies Test (or EAT) Part II differs from the multiple choice format of its predecessor.

Oracle Exam (automated) - This fifteen-item test consists of problems roughly measuring general knowledge and cognitive ability. There is a twenty minute time limit and no discussion with others or use of reference materials is allowed. All calculations must be performed mentally. 

The Nachbar-Smith Test for Eclectic Reasoning Abilities
(automated) - An self-grading IQ test written by Thomas Allen Smith Jr. and Paul Nachbar. 

The Enigmus Riddle Exam - This test consists of thirty riddles which are designed to test your verbal intelligence. You may use reference materials and there is no time limit.  However, you may not discuss the questions with others.  

The Raven Quiz
- This test is for your amusement only. In it you are furnished with 15 riddles, and the answers all have a common thread: they contain the word "ever." The word may appear outright or may be scrambled. Nevertheless, it is there.

The Test You Really Should Try
 - This test was originally designed as a prototype for a high IQ entrance exam. Unfortunately, due to the level of difficulty and the esoteric nature of some of the questions I have decided to retire this endeavor and offer the test as a power test exercise. The answers are provided on a separate page. 







Tests by William F. Bultas

12 Minute IQ Test - This test will measure your abilities in a number of areas under timed conditions, without placing significant emphasis on cultural knowledge.


6 Minute Multi-Mental Test - This test measures your ability to see relationships between words and concepts under timed conditions, without placing significant emphasis on cultural knowledge. 


7 Minute Semi-Culture Fair Test - This test will measure your abilities in a number of areas under timed conditions, without placing significant emphasis on cultural knowledge.


9 Minute Association Test - This test measures your ability to see relationships between words and concepts under timed conditions, without placing significant emphasis on cultural knowledge.


Chimera Analogies Test - This 50 question untimed multiple choice verbal test will measure your verbal reasoning skills, vocabulary size, and knowledge.


Culture Fair IQ Test (Visual-Spatial) - This test consists of 30 visual-spatial problems. Although fluency in English is necessary to understand the instructions for several of the problems, emphasis on vocabulary and knowledge is very low.


Difficult Analogies Test - This 40 question untimed multiple choice verbal test will measure your verbal reasoning skills, vocabulary size, and knowledge.


General Intelligence Test - This 25 question untimed test is designed to measure your general intelligence. 


Math, Language & Logic Test - This 21 question untimed test is designed to measure your general intelligence. 

Mathematical and Logical IQ Test - This 21 question untimed test is designed to measure your mathematical abilities and knowledge as well as your logical aptitude. Although fluency in English is necessary, the emphasis of the test is not on vocabulary or cultural knowledge, perhaps making this a good test for those who do use English as their primary language. An understanding of the fundamentals of algebra will prove helpful on this test.


Quintessential IQ Test - This 25 question untimed test is designed to measure your general intelligence. Emphasis is on visual-spatial and verbal abilities.


Very Difficult Analogies Test - This 36 question untimed multiple choice verbal test will measure your verbal reasoning skills, vocabulary size, and knowledge

Tests by Nik Lygeros

Archimedes Test

Eureka Test 

G-test 


Tests by Xavier Jouve

Cerebrals Cognitive Abilites Test (CCAT) [136 questions] -  

Xavier Jouve, Ph.D., Maria Faverio, Michael Woodley, Ph.D., Karin Lindgren & James Watterson, Ph.D. (2003) 

This psychometric tool is a computerized culture based cognitive abilities battery. The test-taking is currently free and automatically done!
A score of 141 or greater on this test is eligible to join the Cerebrals Society! 

Figure Design Test [20 questions] 
Xavier Jouve, Ph.D. & Gilles Bernard (2004) 
From an idea of Xavier Jouve Ph.D., this test is an original and very powerfull computer adaptation done by Gilles Bernard of the well-known Kohs' Block Design test type. It gathers 20 visual coloured figures that must be reproduced by the test-taker. The FD test chielfy measures the visualisation factor which is one of the main traits into the factorial structure of general cognitive abilities. It also gives an indication of perceptual speed and short-term memory along with other experimental modalities.


Test of Inductive Reasoning (TRI) [54 questions] 
Xavier Jouve, Ph.D. (2003) 
This professional test is a computerized nonverbal intelligence test designed to assess one's eductive ability. It is prepared with figurative items. With excellent reliability coefficients, the TRI as shown very high correlation coefficients with both the SAT I sum of scaled scores, and the SAT I Mathematical reasoning test scaled score. It also very highly correlates with traditional intelligence tests as the WAIS-III or the SIT-R. Thanks to the nonverbal nature of its items, this test is suitable for testing persons without cultural bias.

Test by Philippe Jacqueroux

Experimental Creative Thinking Test [18 questions]

Test by Laurent Dubois

Laurent Dubois (2001) Power-Scale [154 questions] 
Laurent Dubois (2001) 
Requisites : logic, imagination, shrewdness, minimal general knowledge, and a very good sense of observation. These tests are accepted as admission tests in several high iq societies. 

Tests by Hindemburg Melao Jr.

The Sigma Test - A high ceiling entrance exam for the Sigma Society.

Sigma Test IV- This is the only test accepted for admission to Sigma Society VI. It is also accepted for admission to all the other segments of Sigma Society. 

Queendom.com Tests

Logic IQ Test - Revised 
Put on your thinking cap! 


Culture Fair IQ Test- Revised 
Test your IQ without cultural or educational bias


Emotional IQ Test - Abridged 
Are your thinking and behavior leading to success?


Spatial IQ Test 
Can you do 3D puzzles...without using your hands?



Verbal IQ Form A - Revised 
Got the verbal skills of Shakespeare - or Homer Simpson?



Tests by IQTest.com

IQ Test.com Welcome to IQTest.com, home of the original online IQ test. 


Tests by Rottus

Rottus' Genius IQ Test 

Rottus' Sequence Test