Technically, 叫 is a word for call. So if you asked "你叫什么?," the translation would be "What are you called" instead of "What is your name." If you wanted to ask "What is your name," you would use the word for name "名字." So, all together you could ask "请问，你叫什么名字?" or "请问, 你的名字是什么?"

"Excuse Me" as a translation for 请问 is a bit iffy and really fails to capture the literal meaning of the characters. "Please may I ask" is a much better translation for all the other situations where 请问 might be used.

“What are you called?” should be an acceptable answer.

Can I use 请问 for "sorry", like in " excuse me for being so direct"?

In another part of this same lesson, the phrase " excuse me, what is your name?" Is translated very differently into Chinese.

I typed in "Excuse me, who are you?" and it marked me WRONG.

In the comments I see that Please is a better translation!!! Why is the computer correcting me?