Que + [inverted statement] ? = What ... ? (French Questions)

Look at these more formal questions:

To ask a question starting with what, the more formal way is to use que followed by the inverted form of the statement (verb first).

Note that que becomes qu' when followed by a vowel.

ATTENTION:
The main difference with qu'est-ce que is that this alternative form is never followed by the inverted form when using subject pronouns: 

Compare this lesson with other ways to make questions:

Inverted questions in the present tense (Le Présent) in French - il/elle/on forms

Inverted questions in the present tense (Le Présent) in French - regular forms (except il/elle/on forms)

Asking yes/no questions in French with intonation, est-ce que, n'est-ce pas (French Questions) 

Asking questions in French with "qui/que/quoi/quand/où/comment/pourquoi/combien" (French Question Words)