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25 Greatest Riddles in History
Random Facts to Annoy Your Friends: 25 Greatest Unsolved Mysteries That Still Puzzle Experts: Riddle me this Would you like ...
Unsolved mysteries spark curiosity, and for The Chinese University of Hong Kong (CUHK) Prof of Physics Li Hua-bai, this curiosity is the foundation of scientific exploration.
This article was originally published on mentalfloss.com as 6 Haunting, Unsolved Maritime Mysteries.
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