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The Why Factor Episodes Episode guide
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Why do so many men wear a tie?
Why do men wear strips of silk around their necks? Mike Williams on the tie.
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Why is our hair such an important part of who we are?
Why is hair so integral to personal identity? People without hair tell us.
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Why do so many societies mark the end of childhood?
Why do societies around the world mark the point when a child should become an adult?
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Why would anyone devote their life to collecting cuckoo clocks?
Why would anyone collect cuckoo clocks or violins?
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Why are some songs seemingly impossible to forget?
Why do some songs refuse to leave us after we have heard them?
