What is the absolute maximum number of Friday the 13ths that can occur within a single calendar year?
3
A non-leap year beginning on a Thursday contains Friday the 13th in February, March, and November. A leap year beginning on a Sunday contains Friday the 13th in January, April, and July. Neither case can ever exceed 3.
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Hard. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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