Multiple choice general knowledge math & puzzles Find the missing number: 1, 5, 14, 30, ?, 91 45 55 60 70 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Find the pattern in differences: 5-1=4, 14-5=9, 30-14=16. These are 2², 3², 4². Next difference should be 5²=25, giving 30+25=55. Verify: 91-55=36=6², continuing the pattern.