It means "What beverage is the most expensive?"
This means "what is your favorite drink?".
"What is your favorite drink?" in English is Quelle est votre boisson préférée? in French.
quelle est ta boisson chaude préférée ? -
Which is the highest mountain?
quelle heure est-il ? However nowadays we prefer to say 'have you got the time?' in French too rather than quelle heure est-il: Vous avez l'heure? Tu as l'heure? are more commun.
Nanda Devi est la plus haute montagne de linde
C'est Toronto
Quelle est ton nationalite means 'What is your nationality'
"quelle heure est-il ? means "what time is it?
"quelle couleur est-ce ?"de quelle couleur est cet objet ? : what colour is that object?
What is the date? is the translation for Quelle est la date.
Il est quelle huere? (What time is it)