Multiple choice general knowledge math & puzzles Some months have 31 days; how many have 28 days? 12 1 6 2 Reveal answer Fill a bubble to check yourself A Correct answer Explanation All 12 months have at least 28 days. February is the only month with exactly 28 days (or 29 in leap years), but every other month has 28 days as part of their 30 or 31 days. The question asks how many months have 28 days, not exactly 28 days.