YOU SAID:
Why don't you know my name?
INTO JAPANESE
なぜ私の名前を知らないですか。
BACK INTO ENGLISH
I don't know why my name?
INTO JAPANESE
なぜか私の名前ですか?
BACK INTO ENGLISH
Why is my name?
INTO JAPANESE
私の名前はなぜですか。
BACK INTO ENGLISH
Why is my name?
That didn't even make that much sense in English.