Fortnightly Topic Challenge #9: Language

Question

Link to other Fortnightly Topics.

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This is the ninth installment of the Fortnightly Topic Challenge described here, with topics suggested and voted for here. This fortnight's topic is language (suggested by question_asker, and will span from May 13 – May 26. During this period, we will compile the list of questions featuring this topic and post it as an answer to this question.

In the meantime, please go propose and vote on future challenges!

Everyone have fun, and happy puzzling!!

Answer 1

Questions so far are:

• Future or past, depending on the country by wythagoras
• A Strange Correspondence by Jonathan Allan
• A Letter: When Sherlock meets Moriarty by manshu
• The Language Genie by hexomino
• A mysterious telephone message by GentlePurpleRain
• A Greek cipher about 2 lovers by Decypher
• Elle Rend Le Coeur Plus Amoureux by Hugh Meyers
• Breaking up is fun to do by Dan Russell