Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
2
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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The word "impossible" dropped in use by 50% over the course of the 20th century
5
Anuptaphobia is the fear of staying single.
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A group of ferrets is called a business.
6
The technical term for a cat’s hairball is a “bezoar.”
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