A party may direct written interrogatories to any other party. A copy of the interrogatories shall be served on all other parties entitled to notice.Interrogatories are written questions that one party sends to the other. The receiving party is required to answer these questions under oath. Here are some sample interrogatory objections, a cheat sheet that might help you determine how to object to interrogatories. You must answer interrogatories within 30 days from service. If not, you will be forced to answer and probably end up paying HIS attorney fees. This template is a set of objections and responses to interrogatories you may use in an Illinois circuit court civil case. Marital Interrogatories (requests the other party to answer questions) (see Illinois Supreme Court Rule 213). A sample set of interrogatories for Illinois circuit court litigation.