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A question mark ? is a type of punctuation mark.

Question mark or ? may also refer to:

Film and television

• ? (2011 film), a 2011 Indonesian film
• ?: A Question Mark, a 2012 Indian film
• Question Mark (TV program), a 1963–1964 Canadian current affairs television program
• "?" (Lost), an episode of Lost

Music

• ? (Bersuit album) (2007)
• ? (Enuff Z'nuff album) (2004)
• ? (Neal Morse album) (2005)
• ? (Nena album) (1984) or its title song
• ? (XXXTentacion album) (2018)
• ?, a 2011 album by Eason Chan
• ?, a 2003 EP by Modwheelmood
• "?", a song by MF Doom from Operation: Doomsday
• "?", a song by Outkast from Stankonia
• "?" (Modern Industry), a song by Fishbone from Fishbone

Science and technology

• Question Mark (aircraft), an aircraft that set the flight endurance record in 1929
• Question mark (butterfly) or Polygonia interrogationis
• ? function or Minkowski's question-mark function
• ?:, in computer programming, a ternary operator
• Elvis operator, a binary operator in certain computer programming languages
• Safe navigation operator, a binary operator in object-oriented programming
• ?, the why not connective in linear logic
• �, the Unicode replacement character
• ⚳, the symbol for the dwarf planet Ceres
• ʔ, the IPA symbol for the glottal stop

People

• Seung-Hui Cho or Question Mark, Virginia Tech massacre shooter
• Rudy "?" Martinez, singer in ? and the Mysterians

Other uses

• ? (bistro), a restaurant in Belgrade, Serbia
• ? (CONFIG.SYS directive)
• ? (chess), in chess annotation symbols, indicates a mistake

See also

• ? and the Mysterians, an American band
• ?? (disambiguation)
• Upside-down question and exclamation marks
• Question (disambiguation)
• Question The Mark, a Welsh punk band
• Matthew Lesko or question mark guy, American author and infomercial host
• Interrobang, the nonstandard mix of a question mark and an exclamation mark

• Disambiguation pages