In a more brainteaser/puzzle direction there's wu:riddles [1]. For a site that hasn't been updated since 2009 (!) it's very functional and holds up surprisingly

In a more brainteaser/puzzle direction there's wu:riddles [1]. For a site that hasn't been updated since 2009 (!) it's very functional and holds up surprisingly well, aesthetically. [1] https://www.ocf.berkeley.edu/~wwu/riddles/intro.shtml https://www.ocf.berkeley.edu/~wwu/riddles/intro.shtml