Znam odgovor na pitanje.

• znam = I know
• odgovor = answer
• na = usually on, onto, or in some expressions to
• pitanje = question

So the sentence literally looks like I know answer to question, and the natural English meaning is I know the answer to the question.

Serbian does not have articles like the or a/an. That means nouns such as odgovor and pitanje appear without any article.

So:

• odgovor can mean an answer or the answer
• pitanje can mean a question or the question

You understand which one is meant from context. In this sentence, English naturally uses the answer to the question, but Serbian does not need separate words for that.

In Serbian, the verb ending usually already tells you who the subject is.

• znam = I know
• znaš = you know
• zna = he/she/it knows

Because znam already clearly means I know, the pronoun ja is usually omitted unless you want emphasis or contrast.

So:

• Znam odgovor. = I know the answer.
• Ja znam odgovor. = I know the answer with extra emphasis, maybe contrasting with someone else.

Odgovor is in the accusative singular here, because it is the direct object of znam.

You know what?

• odgovor

For this noun, the nominative singular and accusative singular are the same in form:

• nominative: odgovor
• accusative: odgovor

That is very common for many masculine inanimate nouns in Serbian.

This is just the normal Serbian pattern: odgovor na + accusative = answer to ...

So:

• odgovor na pitanje = answer to the question
• odgovor na poruku = reply/answer to the message

Even though English uses to, Serbian uses na in this expression. This is something learners usually need to memorize as a fixed pattern.

It is accusative singular.

The preposition na can take different cases depending on meaning, but in the expression odgovor na pitanje, it takes the accusative.

For the neuter noun pitanje, nominative singular and accusative singular look the same:

• nominative: pitanje
• accusative: pitanje

So even though the form does not change, the case is still accusative.

Yes, pitanje is neuter.

A strong clue is the ending -e in the singular dictionary form:

• pitanje = question

Also, many Serbian nouns ending in -nje are neuter:

• pitanje = question
• znanje = knowledge
• učenje = learning

Because it is neuter, forms like nominative and accusative singular are the same:

• pitanje
• vidim pitanje
• znam odgovor na pitanje

Serbian usually distinguishes between:

• znati = to know a fact, answer, information, how to do something
• poznavati / poznajem = to know a person, place, or be familiar with something

So:

• Znam odgovor. = I know the answer.
• Znam istinu. = I know the truth.
• Poznajem Marka. = I know Marko.

In this sentence, you are knowing information, so znati is the correct verb.

Yes, Serbian word order is more flexible than English, although not every version sounds equally neutral.

The most neutral order here is:

• Znam odgovor na pitanje.

You may also hear:

• Odgovor na pitanje znam.

That version can sound more marked or emphasize the answer to the question. Serbian often changes word order for focus, topic, or style.

So the sentence given is the standard, neutral way to say it.

You negate znam by adding ne:

• Ne znam odgovor na pitanje. = I do not know the answer to the question.

In Serbian, ne is written separately from the verb in this case:

• znam → ne znam

This is one of the first and most useful patterns to learn.

A simple pronunciation guide is:

znam odgovor na pitanje
≈ znahm OHD-go-vor nah PEE-tah-nyeh

A few useful details:

• z is like English z
• zn at the start is pronounced fully; Serbian allows that cluster
• odgovor has a clear dg sequence
• ti in pitanje is not like English tee by itself; the nj sound is like the ny in canyon
• pitanje sounds roughly like PEE-tah-nyeh

If you want to sound natural, pronounce each vowel clearly. Serbian vowels are usually pure and short, not gliding like many English vowels.