Question mark
In the early 13th century, when the growth of communities of scholars (universities) in Paris and other major cities led to an expansion and streamlining of the book-production trade, punctuation was rationalized by assigning Alcuin's stroke-over-dot specifically to interrogatives; by this time the stroke was more sharply curved and can easily be recognized as the modern question mark.
?: A Question Mark
This was the first time not only in Indian Cinema but world over that a film was being released without a title. Instead, to describe the unseen, unheard story, all that was used was a symbol, "?" However, the movie had to be released with a written title "Question Mark" due to censorship rules.