A party may serve fewer than all of the approved interrogatories within a form. (e) Service and Filing.Interrogatories must be served on the party to whom the interrogatories are directed and copies must be served on all other parties. You can, but it could get confusing if you address interrogatories to three different defendants in one document. (1) Interrogatories must be served on the party to whom the interrogatories are directed and copies must be served on all other parties. Fill out the following contact information: Party. You need to file a Request for Additional Time to answer the Interrogatories due to their length and depth. It is intended to be a quick reference for lawyers and judges on many recurring discovery problems. A party may serve fewer than all of the approved interrogatories within a form. â–« Clerks may assist the public with filling out.