Level 3 · Hard
Which number comes next?
- 8
- 11
- 15
- 20
- 26
- Missing piece
- A34
- B31
- C52
- D33
Show the answer and the rule
- The jump grows by one each time (starting at +3).
Brain zone
What comes next? Patterns of pictures, shapes and numbers.
Five levels
Start where it feels easy, then step up. Each round is new.
Ages 5–7 · 10 puzzles
Ages 7–9 · 10 puzzles
Ages 9–11 · 10 puzzles
Ages 11–13 · 10 puzzles
Ages 13+ · 10 puzzles
What it trains
Sequences train you to find a rule from examples and use it to predict. Young children spot repeating patterns; older ones find steps, jumps that grow, multiplying and sequences that take turns.
How to solve it
Try one
Level 3 · Hard
No. These are reasoning puzzles like those found in IQ-style tests, made for practice and fun. We don't measure intelligence or give IQ scores.
Each level shows suggested ages, but start where it feels easy and move up after a round with two or three stars.
Yes. Every puzzle type prints as a black-and-white sheet with a separate answer key, on A4 or US Letter.
More brain puzzles
Which one is the same shape, only turned? Flat shapes and 3D blocks.
Fold flat shapes into cubes in your head.
Fill the grid so each cage makes its target number.
Program Crayo with arrows to reach the goal.