Lua has probably the best "Koans" type problem set I've seen, but they call them "missions": https://github.com/kikito/lua_missions https://github.com/kikito/lu

Lua has probably the best "Koans" type problem set I've seen, but they call them "missions": https://github.com/kikito/lua_missions https://github.com/kikito/lua_missions . What really sets the Lua missions apart is that it tells an actually story, of sorts, and there is a genuine moment of enlightenment toward the end. For Clojure there's the entire functional-koans Github account full of good stuff: https://github.com/functional-koans https://github.com/functional-koans . Also, don't miss 4Clojure: http://www.4clojure.com/ http://www.4clojure.com/