This blog has a really interesting assortment of articles on mathematics and programming. You can use the tags to your right to find topics that interest you, or you may want to have a look at
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Can you show that perfect compression is impossible?
A waiter at a restaurant gets a group's order completely wrong. Can you turn the table to get two or more orders right?
Is it true that every integer you can think of has a multiple written out only with \(0\)s and \(1\)s?
I can't dance but this triangle sure can!