joke (or riddle, puzzle) about Language, and/or Math, Comp.Sci.

Please tell me a good joke (or riddle, puzzle) that
                   is about Language, and/or Math, Comp.Sci.........
            "The new Pope has a mathematics degree (from Villanova
University).      So he not only has a good understanding of sins, but
also cosines and tans."
        -------- and also of  Secs  (Sex)  and Cots !