A picture is worth a thousand guesses.
Last week, Swiss photographer Tiziana Vergari uploaded this photo of girls sitting in a room in Conthey, Switzerland, as part of an Instagram hashtag project.
The project, labeled #WHPidentity, encourages users to submit photos that showcase individuality.
Many people took to the comments to show an appreciation of the picture, but a common question kept coming up. How many girls are actually in the photo?
The answers have varied.