A couple of recent entries over at "Futility Closet" that I found entertaining...
First, a sort of prime-number magic square of sorts:
http://www.futilitycloset.com/2011/01/14/through-and-through/
Who figures this stuff out... and are they still sane by the time they finish!??? ;-))
...actually, the person who concocted this square has a homepage here:
http://users.cybercity.dk/~dsl522332/
And then there's this deceptively-simple li'l story problem where all is not quite as it seems:
http://www.futilitycloset.com/2011/01/13/petty-cash/
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