Lists of unsolved problems Create Talk0 Category page This page needs content. You can help by adding a sentence or a photo! Add to this page! “ Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Unsolved problems in linguistics Pages in category "Lists of unsolved problems" This category contains only the following page. L Unsolved problems in linguistics Retrieved from "http://psychology.wikia.com/wiki/Category:Lists_of_unsolved_problems"