Puzzle Solving is Infosys's most distinctive section — 4 questions in 10 minutes of pure numerical pattern recognition. Each puzzle presents a few worked examples (rows of a grid, blocks around a shape, paired equations) and asks you to find the hidden rule and apply it to a missing value.
The patterns that repeat
- Row/grid sums — the numbers in each row combine (sum, product, digit-sum) to give the row total.
- Boundary puzzles — values around a shape combine with the shape's segment count to give the centre value.
- Digit-sum tricks — square a number, then add the digits of the result.
- Average/midpoint rules — the middle block is the mean of its neighbours.
- Literal evaluation — the pattern is simply the expression computed as written; the "trick" is that there is no trick.
Practice Infosys puzzle questions
Row puzzle: Row 1: 4 + 3 + 4 = 11; Row 2: 5 + 1 + 7 = 13; Row 3: 4 + 4 + 9 = 17; Row 4: 12 + 21 + 28 = 61; Row 5: 17 + 14 + X = 71. Find X.
Boundary puzzle: the centre value equals the sum of the boundary values multiplied by the number of boundary segments. If the boundary elements are 8, 1, 3, 4, 2, 3, 5, 4 on an 8-segment shape, what is the centre value?
Digit-sum puzzle: 23 × 23 = 529 → 5 + 2 + 9 = 16; 29 × 29 = 841 → 8 + 4 + 1 = 13. Using the same logic, what does 31 × 31 = 961 yield?
With 2.5 minutes per puzzle, test the three most common rules first — sum, product, digit-sum — against ALL the given examples. A rule that fits only one example is a coincidence, not the pattern.