Asklemmy

English, decent Italian, a handful of words in French and Spanish, fluent piglatin.

Swahili (native, from Arusha), English (fluent), and Flutter on a good day

Spanish and English. I also know enough Catalan to be able to read but now speak it

German (native), English (not native-level but compared to my work colleagues I might as well be lol) and some American Sign Language (I can carry a simple conversation as long as I may fingerspell words I don't know yet/anymore)

Spanish, english, german.

English, Mandarin and fluent in C++

Dutch, a funky dutch dialect, English and I understand German but I don't speak it. Should probably learn it.

English, German, a bit of Mandarin, and Toki Pona!

English and my native Serbian.

Ich habe Deutsch in der Schule gelernt. Ich benutze es sehr seltsam, aber ich habe fast nichts vergessen, weil unsere Lehrerinen sehr sehr Böse war. Deutsch in der Schule hat meine Leben 10 jahren verkurtzt.

Έχω μάθει και τα Ελληνικά. Ένα από τα όνειρά μου είναι να διαβάζω τα κείμενα στα αρχαία ελληνικά, αλλά αυτό ήταν τρόπο δύσκολο. Γιατί αποφάσισε να μαθαίνω πρότω τα νέα Ελληνικα, καί σύντομα τα αρχαία είναι πολύ πιό εύκολα.

I can understand a fair amount of Russian, but I can't necessarilly speak it as well.

German, English, a little Dutch and Javascript

English. I really wish I had done better in French class during school

Dutch, German, French, English and what starts to become passable Slovak.

In French, it's "Quelles langues parlez-vous?"

English and Turkish as native languages, I've also studied French as a prep-year for highschool so I can understand it but don't speak it fluently, same with Italian, somehow. Other than that I've been learning Mandarin for a year and I'll take the HSK 3 exam in a few months :D

English and Spanish. I also want to learn Portuguese eventually mostly because I am looking into moving to Brazil.

Spanish as native, English as second language, German as third

and no, German and Spanish translations of your question are wrong:

Welche Sprachen sprechen Sie?

¿Qué idiomas habla usted?

Polish (my native language) and english (duh). I also want to learn lojban for fun, but I keep procrastinating

Spanish as my native language, English, intermediate Portuguese and currently learning French.

Mon français n'est pas mauvais, und mein Deutsch ist ziemlich schlecht.

Je ne sais pas si mon allemand avait un sens.

Also English lol.

My native language is French, but I also speak fluent English and a little 日本語 and Spanish.

日本語はもっと難しいだったな。 El español era más fácil de aprender gracias a sus similitudes con el francés, pero, no hablo muy bien😅.

Oh btw, it is not "Que langue fait-vous parler" (blind traduction of the english "What language do-you speak") but rather "Quelles langues parlez-vous?" ("What languages speaks-you?").

We don't use "do" for interrogative in french. The endings for "parler" (to speak) are: Je parle, tu parles, il parle, nous parlons, vous parlez, ils parlent. To make interogative phrases, just invert the pronoun and the verb: tu parles -> parles-tu? So "What language you speak" -> "What language speaks-you?". Sorry for the awkward course ;)

According to this post I speak magenta.