Unsolved IQ Questions
These puzzles are still waiting for an official answer. Work out the rule and contribute your explanation to help the community.
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Maths Puzzle: If 2+3=10, What Does 5+6 Equal?
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Missing Number Puzzle: Can You Solve It?
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Green Square Puzzle: Find the Missing Number
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What Is Missing From the Number Line?
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Whiteboard Puzzle: What Are the Missing Numbers?
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Classic Missing Number Puzzle
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Three Triangles: Find the Missing Number
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Number Grid: Which Number Is Missing?
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Replace the Question Marks in the Sequence
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Find the Missing Number in Each Row
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Find the Missing Number and Share If You Solve It
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Which Number Fills the Empty Segment?
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Number Pattern in Two Groups: Find the Rule
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Fill in the Missing Numbers on the Poster
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Multi-Row Table: Find Every Missing Number
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Find the Missing Number in the Sequence
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Sudoku-Style Number Puzzle: Fill the Grid
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Viral Number Grid: 90 Percent Get It Wrong
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Number Chain: Find the Missing Link
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Table Puzzle: Find the Number in the Empty Cell
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Four Squares with One Number in the Middle: Find It
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Circular Wheel: What Number Is Missing?
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What Am I? I Have a Hat But No Head
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Alphabet Pattern: Which Letter Comes Next?
Help Us Solve These IQ Questions
These questions are waiting for an official answer. Each one has been verified as a legitimate IQ-style puzzle, but our editorial team has not yet published a step-by-step solution. This is your opportunity to contribute — study the question, work out the reasoning, and submit your explanation to help other learners.
Community-submitted solutions are reviewed by our editorial team. High-quality explanations that correctly identify the underlying rule and clearly walk through the logic are published as official answers and credited to the contributor.
How to Submit a Solution
Study the Question
Look carefully at the image. Identify what type of question it is — a number grid, a shape sequence, a spatial count — and recall the reasoning strategies that apply to that category.
Find the Rule
Every IQ question has exactly one consistent rule that produces the correct answer. Test your hypothesis against all given elements before committing. If one piece doesn't fit, the rule is wrong — refine it.
Write a Clear Explanation
A good explanation states the rule, shows how it applies to each known element, and derives the answer step by step. Avoid simply stating the answer — show the reasoning that leads to it.
Submit for Review
Use the submission form on the question detail page. Our editorial team reviews all submissions and publishes explanations that meet our accuracy and clarity standards.
Frequently Asked Questions
What happens after I submit a solution?
Your submission is queued for editorial review. If approved, it is published as the official answer on the question page. You will be credited by name if you provided one in your submission.
Can I submit a solution if I'm not certain of the answer?
You can submit your best attempt, but explain your reasoning clearly. Submissions that show sound reasoning — even if the final answer is debated — are more useful than bare answers without explanation.
Are there rewards for contributing solutions?
Contributing solutions is currently voluntary. Credit is given by name on the published explanation. We may introduce contributor recognition features in the future.
How long does review take?
Most submissions are reviewed within a few days. High-quality explanations for questions with multiple competing submissions may take longer as we evaluate and reconcile different approaches.