15 Most Mysterious Unsolved Puzzles Ever ─ Planet Dolan

We all love a chance to show off how intelligent we are, whether it's posting your IQ test on Facebook, or tweeting that you're, like, really smart. But what if solving a puzzle could win you millions of dollars, solve a murder case or unlock the mysteries of the past? Are there some enigmas that are truly uncrackable? Here are the unsolved puzzles of the world
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Legal notes
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Video narrated by Nixxiom https://twitter.com/Nixxiom
Script written by Paddy
Video edited by martiAn https://twitter.com/trekkie_martian

Image credits & information sources for this video: https://pastebin.com/q4hHDSjY
Planet Dolan PTY LTD have made reasonable inquiries within the timeframe available to identify the source of any images/information used and attribute the source accordingly.

"DD Groove" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
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