Some months have 30 days, some have 31. How many have 28?

Why this works

At first glance, this riddle seems to play a clever trick on your assumptions about the months of the year. Most people immediately think of February, with its well-known 28 days, and forget that every month has at least 28 days. The riddle's brilliance lies in its simplicity and the way it nudges your brain into a familiar pattern—you're conditioned to focus on the exceptions rather than the rule. Digging deeper, you'll find that the riddle cleverly plays with our understanding of time and the calendar. While February is the only month that has just 28 days (except for leap years), every single month of the year—January, March, April, and so on—includes that minimum of 28 days, which makes the answer all the more satisfying. This twist is what sparks the "aha moment," as it forces you to reconsider your initial interpretation of the question. What's particularly delightful about this riddle is how it reminds us of the nuances in language and thought. Its simplicity invites a playful examination of what we take for granted in our everyday lives, and it highlights the joy of discovering hidden layers in seemingly straightforward statements. Fun fact: riddles have been a form of entertainment and mental exercise for centuries, dating back to ancient civilizations, often used to challenge intellect and provoke thought, just like this one!