Blue LiquidScience brain teasers require understanding of the physical or biological world and the laws that govern it.
A mad scientist gazes into a vial of blue liquid. "This substance is still liquid at minus 40 degrees," he tells his assistant, Boris. Boris replies, "Is that Celsius or Fahrenheit?"
The scientist looks at Boris with his dark eyes and says, "It doesn't matter." Why does the scientist say that? What Next?
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