Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
2
Anuptaphobia is the fear of staying single.
11
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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The word "listen" contains the same letters as "silent."
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The words ‘racecar,’ ‘kayak’ and ‘level’ are the same whether
they are read left to right or right to left (palindromes).
they are read left to right or right to left (palindromes).
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