title: Implementing Security questions
body: <p>I am using devise for the signin process. 
  Now my requirement is:</p>
  
  <p>*User will enter some answers to the questions during registration.</p>
  
  <p>When the user signin with his email and password, he will be asked with those security questions. 
  If the answers are correct, he will be directed to dashboard or else if he fails to answer (2 out of 3), then the account will be locked.*</p>
  
  <p>Is there any easy method to implement this MFA in Rails?</p>
  
  <p>Thanks in advance..</p>