You can use interrogatories to find out facts about a case but they cannot be used for questions that draw a legal conclusion.
Read and answer the questions Read the question very carefully. Answer only the question that is asked, and avoid the temptation to over-explain your answer. If the question contains several parts, you may break your answer into parts as well. It is also possible that you might object to the question.
Ask probing questions instead of yes/no questions You'll get much more information by asking open-ended questions. Instead of ?Is your team made up of SDRs and AEs??, ask: ?Can you tell me about your team's structure?? That said, sometimes customers aren't sure how to answer an open-ended question like this.
You can request documents that are relevant to your court case that the other party has access to. You can also request physical items to look at (?inspect?).
For example, divorce case where custody is at issue and there has been domestic violence will likely have questions centering upon that domestic abuse. A custody case will likely include Interrogatories addressing proposed physical care and visitation schedules, and how each party intends to care for the child.