2024 Edition

Free Fun IQ Test

Top 10 reasons why this is the best, free sample IQ test for you:
1. Completely free - including results!
2. Fun IQ practice test suitable for ages 18+
3. Instantly scored with immediate results
4. Answers fully explained
5. Designed by award-winning educator and educational author, Nile Duppstadt II
6. Anonymous - no tracking to match users to results
7. Questions similar to actual I.Q. test questions, not just trivia
8. Length of test similar to actual I.Q. tests (though some are much longer)
9. Informative questions that convey knowledge
10. Quick I.Q. quiz (only 10-45 minutes needed typically, but take your time)

This is not a normalized IQ test, but it will give you a good idea how you may score on an official IQ test.

What is an IQ test? The IQ test measures a snapshot of a person's mental ability as compared to others of the same age. Some cognitive abilities can be accurately assessed, which is the goal of the IQ test. To measure mental ability legitimately requires standardized and culture-fair questions. Professional IQ tests and those accepted by Mensa, have been screened and validated over many years to be considered reliable instruments. Years of research revealed that high IQ scores are predicators of professional and academic achievement.

This is a sample IQ test meant to provide insight as to the type of thinking skills measured on a real IQ test. The score provided is not a valid IQ score based on a legitimate IQ scale, but rather a percentage based on the number of correct answers and the total number of questions. Answers are fully-explained (unlike most other free IQ tests) when revealed. This example Intelligence Quotient Test includes analogy, anagram, palindrome, serial / sequential reasoning, non-verbal reasoning, inductive reasoning, deductive reasoning, verbal reasoning, spatial visualization, spatial relation, numeric pattern, mathematical reasoning, letter pattern, reading comprehensive, and general world knowledge problems.

You may begin your IQ test below. Have fun and good luck!


1. What number is one quarter of one tenth of one fifth of 200?
2. A palindrome is a word or phrase that is spelled the same written forward or backward, often used for I.Q. test questions. "Stets" is a palindrome.
3. Quick mathematical computations are common on IQ tests. Speed of response is important and used to determine the final IQ score. Three of the following numbers add up to twenty-seven. 6, 22, 13, 17, 14, 5
4. Sequential reasoning is often tested in IQ exams. 3, 7, 13, 21, 31. What number comes next in the sequence?
5. Compare and contrast or classification problems are commonly used to measure intelligence. Which of the five is least like the other four?
6. Pattern recognition is another essential skill measured by many IQ exams. Which image best completes the pattern?
7. Sales of an intelligence test, authored by Joe Doe, an awarding-winning psychologist and educator with more than 35 years of experience, are skyrocketing above competitors. More than 30,000 intelligence tests were sold in the first six months, but sales are now falling. A competitor is selling 12,000 cognitive intelligence tests every three months. In another six months, how many more tests will Joe Doe have sold than his closest competitor?
8. Any word or phrase produced from an original word or phrase by rearranging all the original letters to produce a new word or phrase is an anagram, another common IQ question type. Which of the following is an anagram for "Intelligence Tests"?
9. If you rearrange the letters of "ahret," you would have the name of a:
10. A, B, D, G, K. Which letter comes next in the sequence?
11. Which item best completes the IQ test analogy question, train is to truck as airplane is to?
12. The mystery number is between 60 and 150, a multiple of 7, and the sum of its digits is 10. What is the mystery number?
13. "Senile Felines" is a palindrome.
14. Two rabbits, butt to butt, start hopping in opposite directions for 2 meters, hop left 3 meters, and then left another 2 meters. What is the distance between them?
15. Which word is not a synonym of the others?
16. 144, 233, 377, 610, ____, 1597, 2584. What is the missing number?
17. How many four sided figures are in this diagram?
18. Select a number in your head. Double it. Subtract 2. Multiply by 3. Divide by 6. Add 2. The number is the same one you first selected in your head.
19. 2,000,000 nanometers (nm) is to 2 millimeters (mm) as 25,000,000 nm is to?
20. The fifth consonant in this sentence is an "i."
21. I.Q. stands for "Intelligence Quotient." Which of the following phrases contains only letters found in the meaning of the acronym, I.Q.?
22. The pińata participant notices she is facing west before blindfolded. She is spun 180 degrees to the left, then 720 degrees to the right. In what direction is she now facing?
23. Which one of these figures is least like the other three?
24. Shawn, who scored 146 on two IQ tests in a row, is shorter than Tarah. Tarah, who scored below Erick on her test, is taller than Erick. John scored an even 100 on his IQ test and is the tallest of the group. The order of their height from shortest to tallest is John, Tarah, Erick, Shawn.
25. If you were standing in the middle of the Republic of Sudan, facing west, and then turned left, which country would be located directly north?
26. Which image best represents the area with the question mark inside?
27. If you have a 3 gallon cylindrical shaped jug and a 5 gallon cylindrical shaped jug with an unlimited supply of water (and no other containers), which is the correct procedure to end up with exactly 4 gallons in the 5 gallon jug?
28. Which image does not belong?
29. Which number best completes the pattern?
17, 12, 7
3, 7, 11
21, 16, (?)
30. What is the missing number?

CogAT Practice Test

IQ Test Author
Nile Duppstadt II
Award-winning educational author and software designer: National Parenting Center Seal of Approval, Mom's Choice Awards® Gold Medal for Excellence, Seal of Excellence from Creative Child Magazine. Author of Crypto Mind Benders® which develops critical thinking skills.

Nile is Vice President of The Critical Thinking Co, a leading education publishing and test preparation company that helps students improve grades and test scores.