§ 111. Information to be furnished by employer. Every employer shall furnish the chairman, upon request, any information required by him to carry out the provisions of this chapter. The chairman or board may examine under oath any employer, officer, agent or employee. An employer or an employee receiving from the chairman a blank with directions to file the same shall cause the same to be properly filled out so as to answer fully and correctly all questions therein, or if unable to do so, shall give good and sufficient reasons for such failure. Answers to such questions shall be subscribed by the employer or the employee and affirmed as true under the penalties of perjury and returned to the chairman within the period fixed by the chairman therefor.