For example, Japanese wordplay doesn't always translate very well to other languages. Since so much of the wordplay relies on similar pronunciation between two words.
私は「今は何時ですか?」ってネコに尋ねました。「ニャぁニャぁ」が返事しました。
"I asked the cat 'what time is it now?' The cat replied 'meow meow'."
Translators note: The Japanese pronunciation for 7 is "なな (nana)" which sounds like ニャアニャア (nyaa nyaa), which is the Japanese onomatopoeia for a cat's meow. I'm not sure if having the cat respond "meow meow" or "seven" is more funny for the English translation. The joke works better in it's original language as the cat could also be responding with "seven".