19 20. To construct dwellings, outbuildings or improvements for use or occupation by its employees on land purchased, taken in exchange, hired or otherwise acquired by the Authority. 21. With the approval of the Minister to guarantee loans to its employees or their spouses for the purchase of dwellings or land for residential purposes, the construction of dwellings and the improvement of dwellings or land which are the property of its employees or their spouses. 22. To provide security in respect of loans guaranteed in terms of paragraph 21 by the deposit of securities. 23. With the approval of the Minister to make loans to a employee of the Authority— (a) for the purpose of purchasing vehicles, tools or other equipment used by him in carrying out his duties; (b) not exceeding three months’ salary or wages payable to him, for any purpose; on such security as the Authority considers adequate. 24. To do anything for the purpose of improving the skill, knowledge or usefulness of its employees, and in that connection to provide or assist other persons in providing facilities for training, education and research and to pay for the aforesaid, where necessary. 25. To provide such services as the Authority considers could properly be best provided by the Authority. 26. To do anything which by this Act is required or permitted to be done by the Authority. 27. To do all such things as are calculated to facilitate or are incidental or conducive to the performance of the functions of the Authority or the exercise of its powers in terms of this Act or any other law. 28. Generally, to do all such things as may be necessary, conducive or incidental to the exercise of the powers and the performance of the functions of the Authority under this Act or any other enactment.