¿What sort of questions would you ask to a polyglote?

I am going to show you what some classmates and me would ask but we had some mistakes so let me show you our firts questions then I´m gonna write corrections.

• How many languages dou you speak? 😀
• Which one was more difficult? 😀
• Which one was the first you LEARNED? 😖 (We wrote learnd or something like that)
• Why do you decide to learn a lot of languages? 😀
• Have you ever been practicing with native speakers? 😀
• How long did it take you to learn those languages? 😀
• Once that you learned the first language apart from yours, was it easier to learn the OTHER? 😖

Teacher help us before he made the observations so I think we made a good job!