What is the singular for WHO in Spanish?

What is the singular for WHO in Spanish?

What is the singular for WHO in Spanish? 

whoquién
singularel singular

Can que mean who? How to Use ‘Que’ If you take the accent mark from que, it means “that,” “which,” “who,” “whom,” or “whose” in English.

Who is Spanish plural? 

whoquién
pluralel plural

What does con quien tengo el gusto? GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) Spanish term or phrase: ¿con quien tengo el gusto? English translation: With whom do I have the pleasure?