For me the holidays end on Monday so I just have time to post this seasonal question.
Why is Christmas the same as Halloween?
Specifically why is Oct. 31 = Dec. 25.
Hint: you need to look at exactly how this is written.
A short problem with a long pedigree.
Isaac Asimov based a whole story on this puzzle, ‘A Curious Case of Income Tax Fraud’, part of his Black Widowers series.
I asked some work colleagues and had some amusing answers, none of which were maths related. Maybe you have your own?