You must answer these interrogatories under oath within 30 days, in accordance with Court Rule 33 and 34. Interrogatories are a set of written questions that one side in a lawsuit sends to the other side to gather information and evidence.This is a how-to guide on interrogatories and requests for production in Washington divorce and family law cases. In accordance with Washington. Superior Court Rules 26 and 33, please answer each of the following interrogatories separately, fully, in writing and under oath. Send plaintiff's first set of interrogatories to defendant via email, link, or fax. You can also download it, export it or print it out. All forms are available in PDF format unless otherwise noted. The Court recommends opening PDF forms with Adobe Acrobat Reader.