Multiple choice general knowledge math & puzzles 2 5 12 23 30 17 8 ? 2 3 4 1 Reveal answer Fill a bubble to check yourself B Correct answer Explanation This sequence represents the number of letters in the words for the months of the year: January (7), February (8), March (5), April (5), May (3), June (4), July (4), August (6), September (9), October (7), November (8). The next is December (8).