Learn Croatian: Možeš li naći izlaz?

izlaz is the noun form for "exit". Both words share the prefix iz-, which means "out" or "out of". While izaći is the action of going out, izlaz is the physical way out. You will also see this same pattern with ulaz (entrance) and ući (to enter).

Why is the question particle li placed right after Možeš?

In standard Croatian, yes/no questions are often formed by putting the conjugated verb first, immediately followed by the question word li. You might also hear people say Da li možeš naći izlaz? in everyday speech, which means exactly the same thing.

Why is naći used here instead of a conjugated form?

naći (to find) is in the infinitive (dictionary) form because it follows the modal verb možeš (you can). Just like in English where we say "can find" rather than "can finds", the second verb stays in its base form.

What case is izlaz in here, and why doesn't its ending change?

It is in the accusative case because it is the direct object (the thing being found). izlaz is a masculine noun that represents a non-living thing. For inanimate masculine nouns, the accusative form is exactly the same as the dictionary form, so no special ending is added.