IQ puzzles with answers

300 practice puzzles in the six formats used on the IQ Octopus test. Every one has its answer and a step-by-step solution.

Short answer

These are free IQ practice puzzles with answers: 6 formats (pattern sequences, matrix reasoning, mental rotation, odd one out, number series and figure analogies), each with easy, medium and hard sets. Tap an option to check yourself, then open the worked solution.

Want your own number? The test is 25 visual puzzles, about 12 minutes, no sign-up.

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Pattern RecognitionPattern Sequence
Rows of tiles that change by rule. Name every change, apply it once more, and the missing tile is the only option that fits.
Easy Medium Hard
Abstract ReasoningMatrix Reasoning
Raven-style 3x3 grids. Find the rules in the rows and columns, describe the missing tile, then find it among eight options.
Easy Medium Hard
Spatial ReasoningMental Rotation
Same shape or mirror image? Turn the figure in your head, follow one landmark, and the mirror images give themselves away.
Easy Medium Hard
Spatial ReasoningOdd One Out
Six figures, one that breaks the rule. Ignore what varies on purpose and look for what five of them share.
Easy Medium Hard
Quantitative ReasoningNumber Series
12, 15, 20, 27, 36, 47, ?
Five numbers and a blank. Look at the gaps first; they almost always give the rule away.
Easy Medium Hard
Logical ReasoningFigure Analogy
A is to B as C is to what? Name every change in the first pair, then apply exactly those changes to the third panel.
Easy Medium Hard

Try one · Abstract Reasoning

Which tile completes the grid?

Tap the option you think is right, or show the answer.

Show the answer

The missing tile has two outlined diamonds (option 7).

How to solve it

Start with the first column and name what changes from tile to tile.
Every row and every column contains each shape (star, diamond and square) exactly once.
Every row and every column contains each number of shapes (two, three and one) exactly once.
The fill (outline) stays the same in every tile.
Check the rules on the second column, then apply them to the third.
So the missing tile has two outlined diamonds.

That was 1 puzzle. The full test has 25.

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Every puzzle

Pattern Sequence

easy #1 · easy #2 · easy #3 · easy #4 · easy #5 · easy #6 · easy #7 · easy #8 · easy #9 · easy #10 · easy #11 · easy #12 · easy #13 · easy #14 · easy #15 · easy #16 · easy #17 · medium #1 · medium #2 · medium #3 · medium #4 · medium #5 · medium #6 · medium #7 · medium #8 · medium #9 · medium #10 · medium #11 · medium #12 · medium #13 · medium #14 · medium #15 · medium #16 · medium #17 · hard #1 · hard #2 · hard #3 · hard #4 · hard #5 · hard #6 · hard #7 · hard #8 · hard #9 · hard #10 · hard #11 · hard #12 · hard #13 · hard #14 · hard #15 · hard #16

Matrix Reasoning

Mental Rotation

Odd One Out

Number Series

Figure Analogy

3 questions

Questions

Are these real IQ test questions?

They are made by the same generator as the IQ Octopus test, in the same six formats. The test itself creates fresh items for every attempt, so these exact puzzles will not appear in it.

Do practice puzzles raise your IQ?

Practice makes the formats familiar, and retaking cognitive tests raises scores by about a quarter of a standard deviation on average. That is familiarity with the test, not a change in underlying ability.

Which puzzle type should I start with?

Pattern sequences are the gentlest introduction. Matrix reasoning is the largest section of the test, so it is worth the most practice.

25 puzzles · about 12 min

Find your IQ in 12 minutes.

25 visual puzzles, free to take. Your full result, with your estimated IQ, percentile and five-area breakdown, is $4.95 one time.

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Free to take. Full result $4.95, one time. No subscription.

Every puzzle

Pattern Sequence

Matrix Reasoning

Mental Rotation

Odd One Out

Number Series

Figure Analogy

Questions

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Find your IQ in 12 minutes.