Question mark (disambiguation)

A question mark is a type of punctuation mark.

Question mark or ? may also refer to:

Mathematics, programming and science

• QuestionMark, a supplier of online assessment software
• Minkowski's question mark function, a mathematical function
• Polygonia interrogationis, the Question Mark butterfly
• ?:, a ternary operator
• �, Unicode replacement character
•  ?, a distortion of the astronomical symbol for the dwarf planet Ceres

People

• Seung-Hui Cho or "Question Mark", Virginia Tech massacre shooter
• Matthew Lesko or "question mark guy", American author and infomercial host

Popular culture

• ? (film), a 2011 Indonesian film
• "?" (Lost), an episode of Lost
• Question Mark & the Mysterians, an American band
• ? (Bersuit album), 2007
• ? (Enuff Z'nuff album), 2004
• ? (Neal Morse album), 2005
• ? (Nena album), or the title song, 1984
• ? (EP), an EP by Modwheelmood, 2003
• "? (Modern Industry)", a song by Fishbone from Fishbone

Other uses

• Question Mark (aircraft) a U.S. Army aircraft that set an endurance record in 1929
• ? (bistro), a restaurant in Belgrade, Serbia
•  ?, a symbol used in chess punctuation
•  ?, an approximation of the IPA symbol for the glottal stop

See also

• ?? (disambiguation)
• Inverted question and exclamation marks (¿)
• Question (disambiguation)