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Quizzes > Self-Discovery & Identity

Free Online IQ Test: Check Your IQ at Home in Minutes

Quick, free quiz to test your IQ and thinking skills. Instant results.

Editorial: Review CompletedCreated By: Richard GwayaUpdated Aug 27, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art brain and puzzle pieces representing reasoning logic memory for free online IQ quiz at home on teal background

This IQ test helps you check your thinking skills at home and see how you handle logic, patterns, and memory. For a speed run, try our quick iq test, or push yourself with a high iq test; you can also warm up with an iq challenge quiz.

What number comes next in the sequence: 2, 4, 6, 8, ?
9
12
10
11
The sequence increases by 2 each time. Starting at 2, adding 2 yields 4, and so on. Therefore, after 8 comes 10.
In the word "CAT", if C=3, A=1, T=20, what is the sum of these values?
22
24
23
26
Each letter corresponds to its position in the alphabet. C is the third letter, A is the first, and T is the twentieth. Summing 3 + 1 + 20 equals 24.
Which shape does not belong: Circle, Square, Triangle, Cylinder?
Square
Cylinder
Triangle
Circle
A cylinder is a three-dimensional object, while the circle, square, and triangle are flat, two-dimensional shapes. This difference in dimensions makes the cylinder the odd one out.
What is the next number in the pattern: 1, 4, 9, 16, ?
20
30
25
36
These numbers are perfect squares of consecutive integers: 1², 2², 3², 4². The next term is 5² which equals 25.
What number completes the series: 2, 3, 5, 8, 12, ?
19
16
17
18
The differences between terms increase by one each time: 3?2=1, 5?3=2, 8?5=3, 12?8=4, so next difference is 5, adding to 12 gives 17.
Book is to Reading as Fork is to:
Listening
Driving
Writing
Eating
This is an analogy comparing objects with their primary functions. Just as a book is used for reading, a fork is used for eating.
If all Bloops are Razzies and some Razzies are Lazzies, can we conclude that all Bloops are Lazzies?
Only if
Cannot be determined
Yes
No
This is a syllogism problem. While all Bloops belong to Razzies and some Razzies are Lazzies, there is no guarantee that the Bloops fall into the subset of Razzies that are Lazzies.
A man walks one mile south, one mile east, and one mile north and returns to his starting point. Where is he?
Prime Meridian
North Pole
South Pole
Equator
The only location on Earth where this path leads back to the start is near the North Pole. Walking south, east, and then north in that specific area loops back.
Find the next number in the sequence: 2, 6, 12, 20, 30, ?
40
36
42
52
The nth term of this series is given by n(n+1). For n=6, 6×7=42.
Which number is the odd one out: 121, 144, 169, 195?
121
195
144
169
121=11², 144=12², 169=13², all are perfect squares. 195 is not a perfect square, making it the outlier.
Which word becomes a new word meaning "longer" when its third letter is removed?
Lounger
Shorter
Longing
Singer
Removing the third letter 'u' from "lounger" yields "longer," which changes the meaning accordingly.
The sum of three consecutive integers is 72. What is the largest of these integers?
23
25
24
26
Let the integers be n, n+1, n+2; their sum is 3n+3=72. Solving 3n=69 gives n=23, so the largest is 25.
In a round-robin tournament where each team plays every other team exactly once, there are 66 matches in total. How many teams participated?
11
10
13
12
The number of matches in a round-robin with n teams is n(n?1)/2. Solving n(n?1)/2=66 gives n=12.
0
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Study Outcomes

  1. Understand IQ testing principles -

    Learn the foundational concepts behind IQ assessment, including reasoning, logic, and pattern recognition, to see how these elements combine in a free online IQ test.

  2. Measure your IQ at home -

    Discover how to use our interactive online IQ quiz to calculate your IQ score accurately and conveniently from your own space.

  3. Analyze cognitive strengths and weaknesses -

    Break down your performance across logic, reasoning, and memory tasks to pinpoint areas of mental strength and opportunities for growth.

  4. Interpret your personalized feedback -

    Understand what your IQ score reveals about your problem-solving style and how to apply that insight to everyday challenges.

  5. Apply improvement strategies -

    Use targeted exercises and tips provided after the quiz to boost your cognitive skills and prepare for future assessments.

Cheat Sheet

  1. Understand IQ Test Subdomains -

    Most free online IQ tests mirror professional assessments by covering verbal reasoning, spatial ability and working memory. Reviewing sample items from reputable sources such as university-hosted practice quizzes (for example, Stanford Binet or WAIS-style questions) helps you know what to expect. Use the mnemonic "VSW" (Verbal, Spatial, Working memory) to recall each key domain.

  2. Master Pattern Recognition -

    Raven's Progressive Matrices are the gold standard for measuring abstract reasoning; practicing 3×3 and 4×4 matrix puzzles sharpens your skills. Look for sequences where shapes rotate, reflect or change size - e.g., if each row adds one triangle, predict the missing cell. Regularly timing yourself on sites like OpenPsych ensures you build speed and accuracy.

  3. Hone Logical Reasoning -

    Solve classic syllogisms (All A are B; All B are C; therefore all A are C) to boost deductive logic. Try puzzles from the American Psychological Association's online resources to practice "if - then" statements and avoid common fallacies. Framing each problem as "if X then Y" can serve as your go-to formula for clear reasoning.

  4. Train Working Memory -

    Digit and letter span tasks strengthen the short-term retention needed for complex problem solving. For example, repeat number sequences backward (7-3-9 becomes 9-3-7) using apps like PsyToolkit. A simple mnemonic trick is the "chunking" method - group long lists into meaningful units (e.g., 1492-1066-1776).

  5. Simulate Real Test Conditions -

    When learning how do you test your IQ at home, replicate quiet settings and strict time limits found in official tests. Use a stopwatch, disable phone notifications and take a full 30 - 45 minute practice quiz to build stamina. Reviewing immediate feedback from free online IQ tests helps you identify weak areas to focus your study.

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