Each interrogatory shall be answered separately and fully in writing under oath. If the interrogatory is objected to, the reasons for the objection shall be stated. Each answer shall be preceded by the interrogatory to which it responds. The answers shall be signed by the person making them; and the party upon whom the interrogatories have been served shall serve a copy of the answers and objections on the party submitting the interrogatories within forty (40) days after the service of the interrogatories, unless the court on motion and notice and for good cause shown, enlarges or shortens the time. With the party’s answers a party may serve specific written objections to particular interrogatories, stating the grounds on which the objections are based. The party shall answer to the extent the interrogatory is not objectionable. Failure to serve such objections within the time prescribed shall constitute a waiver thereof. Answers to interrogatories to which objection is made may be deferred until an order to answer is entered in accordance with Rule 37(a) upon motion of the interrogating party.
An interrogatory is not objectionable merely because it calls for an answer which involves an opinion or contention that relates to fact, or to the application of law to fact, but the court may order that such an interrogatory need not be answered until after other designated discovery has been completed or at some other later time.
R.I. Super. Ct. R. Civ. P. 33