This chapter presents a study on riddle's morphological aspect which demonstrates the need to evaluate its forms discriminatively. As a result, one form emerged as containing more of the riddle and being more archaic than others; similarly, one function within the array of observed functions came into view as unmatched by any other as concerns its adequacy for the genre of folk riddle. A playful preparation of young members of society for sexual maturity is in absolute need of the riddle as its form. The chapter explains that Lehmann-Nitsche and Taylor achieved a systematic view of the folk riddle by turning away from the recorded answers, facing the descriptions for their own sake and focusing on their semantics and its configurations. The widespread tabooed status of sexual subjects in the cultural context effectively describes how they function in the form of indirect expression provided by the figure of concealment and, correspondingly, explains their status as the folk riddle's hidden content.