What Kind of Questions Are on an IQ Test?
IQLast updated: September 1, 2026
What kind of questions are on an IQ test?
Most IQ tests mix five kinds of questions: number sequences, pattern and matrix reasoning, spatial reasoning, verbal analogies, and short working-memory tasks. Each targets a different part of reasoning, and a full-scale score combines them. No single type is "the" IQ question; the score comes from performance across the whole set.
The exact blend varies. Culture-reduced tests lean heavily on patterns and matrices and use few words. Broader batteries add vocabulary, arithmetic, and general knowledge. What stays constant is the idea of sampling several distinct abilities and rolling them into one figure.
| Question type | What it is meant to measure | Short example prompt |
|---|---|---|
| Number sequences | Spotting a numeric rule and applying it | "3, 6, 11, 18, 27, ?" |
| Pattern and matrix reasoning | Non-verbal logic and rule detection | "Each cell adds one dot. Row 3 shows 3, then 4, then ?" |
| Spatial reasoning | Holding and transforming shapes in the mind | "A 3 by 3 by 3 cube is painted outside. How many small cubes have one painted face?" |
| Verbal analogies | Seeing the relationship between two concepts | "Doctor is to hospital as teacher is to ?" |
| Working memory | Holding and reordering information briefly | "Repeat these digits backward: 4, 9, 2, 7" |
How do number sequence questions work?
A number sequence gives you a short run of numbers that follow a hidden rule, and asks for the next term. The rule is usually about the gaps between terms, or a repeated operation like adding, multiplying, or alternating between two patterns. You find the rule by looking at how each number relates to the one before it.
Example. 3, 6, 11, 18, 27, ?
The gaps between the numbers are 3, 5, 7, 9. Each gap is 2 larger than the last, so the next gap is 11. Adding 11 to 27 gives 38.
Answer: 38.
How do pattern and matrix questions work?
A matrix question shows a grid of figures with one cell blank, and you pick the figure that completes the pattern. The rules run along the rows, down the columns, or both at once: a shape rotating, an element being added, a feature alternating. You work out each rule, then apply it to the empty cell.
Example. Picture a 3 by 3 grid of cells. Reading left to right, each cell holds one more dot than the cell before it. Each new row starts one dot higher than the row above.
Row one holds 1, 2, 3 dots. Row two holds 2, 3, 4 dots. Row three holds 3, 4, and the missing cell. Both rules point the same way, so the missing cell holds 5 dots.
Answer: 5 dots.
How do spatial reasoning questions work?
Spatial questions ask you to picture an object and change it in your head: rotate it, fold it, view it from another side, or count hidden parts. Mental rotation items are the most common form, where you decide whether two figures are the same shape turned around, or mirror images. Others test visualisation of solids.
Example. A cube measuring 3 small cubes along each edge is built from 27 small cubes, and the whole outside surface is painted. How many of the small cubes end up with exactly one painted face?
The small cubes with one painted face sit in the middle of each face of the big cube, away from every edge. A cube has 6 faces, with one such small cube in the centre of each. As a check: 8 corner cubes have 3 painted faces, 12 edge cubes have 2, 6 face-centre cubes have 1, and 1 hidden cube in the middle has none. That is 8 plus 12 plus 6 plus 1, which is 27.
Answer: 6.
How do verbal analogy questions work?
A verbal analogy gives you a pair of words with a clear relationship, then a third word, and asks for a fourth that completes the same relationship. The skill is naming the link in the first pair precisely, then carrying it across. Common links are part to whole, tool to user, cause to effect, and category to example.
Example. Doctor is to hospital as teacher is to ?
The link in the first pair is workplace: a doctor works in a hospital. Carrying that across, the place where a teacher works is a school.
Answer: school.
How do working memory questions work?
Working memory items ask you to hold a small amount of information for a few seconds and do something with it, such as repeat it in reverse or sort it. In a supervised test the material is read aloud once, so the difficulty is in holding it, not in the operation itself.
Example. Repeat these digits backward: 4, 9, 2, 7.
Reverse the order of the four digits.
Answer: 7, 2, 9, 4.
Can you study for an IQ test?
You can raise your score on a specific test format by practising that format, mostly by removing the surprise of seeing it for the first time. The gain is largest on a first-ever attempt and then flattens. Practice on one format does not transfer far, and it does not raise general ability in any simple way.
What practice does: it makes the instructions familiar, steadies your pacing, and cuts the anxiety of the unknown. Retest gains of a few points are well documented, and this is mostly what they are.
What practice does not do: make you broadly better at thinking, or move your score on a different kind of problem you did not drill. Working through IQ sample test questions with explanations is a reasonable way to get familiar with the formats before a real sitting, as long as you read it as familiarisation rather than self-improvement.
What should you expect the first time you take one?
Expect a set of timed sections that get harder as they go, with no feedback until the end. Most people do not finish every item, and that is by design. Read each instruction carefully, because losing marks to a misread rule is common on a first attempt.
The difficulty ramp is deliberate. Early items are meant to be quick so the test can place you, and later items are meant to be missed by most people. Running out of time on the hardest block is normal and does not mean you did badly.
If the test is supervised, the examiner controls the pace and you cannot go back. If it is online, watch for a timer and do not leave a section open while you look something up, which only makes the result meaningless.
Frequently Asked Questions
Are IQ test questions the same on every test?
The categories overlap a great deal, but the exact items, the timing, and the balance between verbal and non-verbal sections differ by test. Culture-reduced tests lean almost entirely on patterns and matrices.
Can you get better at IQ tests by practising?
You can improve your score on a format you practise, mainly by removing unfamiliarity. The effect is strongest the first time and does not spread far to other kinds of problems or to everyday thinking.
What is the hardest type of IQ question for most people?
It varies by person. Matrix reasoning under time pressure and backward working-memory tasks are common weak points, but someone strong in one area is often weaker in another.
Do online IQ tests use real IQ questions?
Many use the same question types. What they usually lack is a representative norm sample and supervision, so the score is a rough estimate rather than a measured result.
Should I look up answers while taking a test?
No. It makes the score meaningless. If you want to learn the formats, use a practice set with explanations before or after, never during a scored attempt.
See the question types with answers
Our IQ sample test questions page walks through one of each type with the full reasoning. When you want a scored run, the free IQ test covers all five categories in about 30 questions, with an instant estimate and no email. Both are for practice and curiosity, not a clinical result.