[support] Need to change user login

Using latest Drupal 7 fully updated. I need to change the user login system.. Change the title of the Username to 'Question 1' and the Password title to 'Question 2' Is there a way to do this please. Also, user names and passwords will be based on a series of questions and answers. Is there a way I can get ddslideshow or views-slideshow to randomly read one one line at a time from a text file rather than create a content type and a lot of entries in the content system. Thanks in advance Roger