Hi Teh Jen Ai ,

We're aware there's currently a slight technical issue with the quizzes when accessed on the mobile.

There is a workaround of making the quizzes work on mobile - you need to enable desktop mode.

To do so, click on the menu button at the top right of the browser and enable the option; Request Desktop Site.

Please give that a try and let us know how you get on.

Alternatively, you could complete the quiz on a computer., it should work well there.