Solved IQ Questions
Every question here has an official answer and a step-by-step explanation. Study the reasoning, not just the result.
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3x3 Number Grid: Find the Missing Number
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Number Sequence: 54 9 54 12 54 15 54 — What Comes Next?
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Which Compass is Pointing North?
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How Many Rectangles in the Grid?
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Colour Grid Rotation: What Comes Next?
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4x4 Number Grid: Find the Missing Number
What Makes a Question "Solved"?
A question is marked as solved when it has an official answer and a verified step-by-step explanation written by our editorial team. Each solved question walks you through the exact reasoning process — not just the final answer, but why that answer is correct and how to identify the pattern or rule independently.
Studying solved questions is one of the most effective ways to prepare for an IQ test. Rather than guessing, you learn to recognise the underlying logic that powers each puzzle type, making you faster and more accurate when you encounter similar questions.
How to Study Solved Questions Effectively
Read the Explanation First
Before revealing the answer, study the image carefully and attempt to solve the question yourself. Then read the official explanation and compare your reasoning to the correct approach. Identifying where your logic diverged is the most valuable learning moment.
Focus on the Rule, Not the Answer
Every IQ question is built around a hidden rule — a mathematical operation, a visual transformation, or a logical relationship. The answer itself matters less than understanding the rule, because the same rule will appear in many different questions.
Group by Category
Filter solved questions by category — Number Sequences, Pattern Recognition, Spatial Reasoning — to build focused expertise in one area before moving to the next. Deep familiarity with one question type transfers to related types.
Revisit Difficult Questions
If a question's explanation surprises you or requires multiple readings to understand, mark it mentally and return to it later. Spaced repetition — reviewing material at increasing intervals — is proven to improve long-term retention.
Frequently Asked Questions
Who writes the official explanations?
Official explanations are written and verified by our editorial team with backgrounds in mathematics, cognitive psychology, and psychometric testing. Each explanation is checked for accuracy and clarity before publication.
Can I suggest a better explanation?
Yes. If you believe an explanation is incomplete or incorrect, use the Report button on the question page to flag it for review. We update explanations when a clearer or more accurate approach is identified.
Are solved questions harder than unsolved ones?
Not necessarily. The solved/unsolved distinction reflects whether our team has published an official answer yet — not the inherent difficulty of the question. Easy questions can be unsolved and hard questions can be solved.
How many questions have official answers?
We are actively expanding our library of official answers. Check the all questions page for a live count. New explanations are added regularly.