Multiple choice general knowledge math & puzzles

1, 4, 9, 16, 23, 25, 36

  1. 9

  2. 23

  3. 25

  4. 36
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sequence contains perfect squares: 1 (1²), 4 (2²), 9 (3²), 16 (4²), 25 (5²), and 36 (6²). The number 23 is the only non-square number, making it the clear outlier in this pattern of square numbers.

Keep practicing — related questions