PopQuizzical Daily! for July 14, 2012:

True or false: absolutely pure water has a slightly blue tint to it.
(Answer in tomorrow’s PopQuizzical Daily!)
Yesterday's PopQuizzical Daily! answer: 
Mammoth Cave is aptly named – it’s mammoth size consists of over 390 miles (627 kilometers) of mapped caverns, with even more still to be fully spelunked.  This would have been a great Batcave, but Bruce Wayne really would have lost out on his gas milage having to drive hundreds of miles through caverns to Gotham.  

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