Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
2
The word "listen" contains the same letters as "silent."
135
A group of pugs is called a grumble.
10
The word 'mile' is derived from the Latin word for 1,000 - the number of paces it took the average Roman!
6
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Anuptaphobia is the fear of staying single.
11
The word "impossible" dropped in use by 50% over the course of the 20th century
5
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
112