Words within words:a type of joke that works because the letters of some words and phrases can make other words.Riddles字谜—How did the animals open the zoo door?—They used a monkey!—What’s the longest word in English?—Smiles—there’s a“mile”between the first and last letters! Words within words: a type of joke that works because the letters of some words and phrases can make other words .Riddles 字幕 -How did the animals open the zoo door? -They used a monkey! -What’s the longest word in English? - Smiles-there’s a “mile” between the first and last letters!