If you don't respond by the deadline, the court can impose sanctions, such as fines, or even enter judgment for the opposing party.
In addition, your spouse can file a motion to compel you to provide answers.
Interrogatories and depositions are part of the discovery process in a divorce lawsuit.
Discovery allows both parties to ask the other side questions, in order to bring out all of the facts in a case.
To turn a sentence into a question, sometimes you have to reverse the word order and place the subject at the end of the sentence.
For example, Gli studenti sono bravi (The students are smart) becomes Sono bravi gli studenti?