(a) You may serve on any other interested party written interrogatories and requests for admission of facts and documents if:
(1) The interrogatories and requests are served in sufficient time to permit answers to be filed before the hearing, or as otherwise ordered by the judge; and
(2) Copies of the interrogatories and requests are filed with the judge.
(b) A party receiving interrogatories or requests served under paragraph (a) of this section must:
(1) Serve answers upon the requesting party within 30 days after the date of service of the interrogatories or requests, or within another deadline agreed to by the parties or prescribed by the judge; and
(2) File a copy of the answers with the judge.