Shutterstock/CatherineScarlett
When you leave an unventilated room that has a strong smell in it and return sometime later, the smell has gone. But where did it go?
Derek Johnson
Moreton-in-Marsh, Gloucestershire, UK
Lighthouse Films/Getty Images
Is there an equivalent of being ambidextrous for feet?
Peter Slessenger
Reading, Berkshire, UK
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