title: How To Random Activity?
body: <p>I am doing Kids Game, can say that it's IQ Kids Testing, and I have questions in 10 activity then I want it random when user launching the question it's will call 1 of 10 and when user press NEXT Question it will call 1 of 9 activity remaining., and if press Next Again it will call 1 of 8 activity remaining.</p>
  
  <p>How can I do that?</p>
  
  <p>Best Regards,</p>