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In French, there is “ça va?”, which can be translated as “it goes?”. It is also a valid response to itself too, so the conversation flow might just be “ça va? ça va.”
Reminds generally of Spanish and porque/por que
Porque === because
Por que === for what?
It’s similar in English, though native speakers probably never notice: it’s literally “be cause”.
“How’s it going?”
“It’s going”
All good? All good.
In German there is “moin”. And a conversation might go like: “Moin. Moin.” As far as I’m concerned this greeting has no meaning at all. It could be derived from “morgen” (EN: morning), but you can use it at any time. So it’s basically a noise you make to acknowledge someone’s existence at this point. With varying degrees of enthusiasm.