Many students who want to practice spoken Latin come up with questions starting with "How + adjective": how large? how big? how important?. Is there a short way to ask those questions or is paraphrasing needed?
The simplest way is to modify the adjective with quam, "to what degree?". Formally, this is an interrogative adverb, that asks a question about how the adjective should be modified.
I couldn't find a direct question in my quick search (annoyingly, the PHI corpus doesn't let me search for question marks) but here's an indirect one from Cicero's defense of Quintus Roscius Amerinus:
Quam sīs audāx omnēs intellegere potuērunt.
Everyone could tell how brave you were.