Bizarre Mysteries That Remain Unsolved to This Day

The Disappearance of Jimmy Hoffa

It's not entirely unlikely that someone like Jimmy Hoffa—an infamous labor leader and Teamster president who went to prison for a litany of unsavory reasons—would be murdered. Despite this, Hoffa's body was never found. The only evidence of Hoffa's murder was a strand of hair that matched his DNA in the backseat of a car. Even his own daughter said, "It would be a comfort to find his body, but I don't think we will."

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The More You Know

  • There are more than 24 time zones around the world.
  • You can survive being in outer space without permanent damage for about half a minute.
  • Singapore plans to build floating burbs.
  • Tennis was originally played with bare hands.
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