A party may serve on any other party no more than 25 written interrogatories, including all discrete subparts. A party shall make its initial disclosures based on the information then reasonably available to it and is not excused from making its disclosures.1. State that you are requesting answers to the interrogatories under Federal Rule of Civil Procedure 33. 2. 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. In federal civil litigation, interrogatories are written questions that must be answered in writing under oath. All forms are ADA accessible, and you can handwrite or type into the PDF form to fill it out. Suggestions? Appellate Court Forms. Service of discovery shall be made in the manner provided for service of documents in Rule 11. (n)Claims of Privilege.