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[noun] desu ka.

The interrogative in Japanese is easy.
Put "ka" at the end of a sentence and it becomes a question.

Meepuru san desu ka.

(As for you,) are you Mr. Maple?

The use of pronouns such as "anata", you, "kare", he, and "kanojo", she, is avoided in this case.The personÕs name is used instead.
"-san" is a title of respect added to a name, so it cannot be used after oneÕs own name. "-san" may be used with both male and female names, with either surname or given name.