Multiple choice general knowledge math & puzzles 0 3 8 15 ? 23 24 25 27 Reveal answer Fill a bubble to check yourself B Correct answer Explanation The pattern follows n²-1: 1²-1=0, 2²-1=3, 3²-1=8, 4²-1=15, so 5²-1=24. Each term is one less than the square of its position.