A practical comparison between these 2 very interesting languages. I have used some Haskell tutorials in order to firstly learn more Haskell, and secondly, come up with interesting problems and practice my Groovy. The problems are quite theoretical and mostly one-liners in the beginning, and then towards the end, I've added some very real-world kinds of things you will likely need to do, such as DB access and GUI. Hope this may help people who are interested in knowing more about either language or who actually need to solve some problem similar to the ones included in this sample. Enjoy!