Seven months have 31 days. How many months have 28 days?

“February”

While February is the only month with only 28 days in a common year, the riddle asks how many months have at least 28 days, which includes all other months.

“January”

January has 31 days, which means it also has 28 days, but the riddle is looking for a broader answer, not just individual months.

“December”

Like January, December has 31 days and therefore also contains 28 days, but the correct answer includes all months, not just one.