Mazescape 2019

This is the third Unity C# game I have made and I am still learning.  I made this game to teach / quiz my Chinese students on their Professional Practice learning.  When a door is clicked, one of eleven  Professional Practice  questions is displayed and the door will only open if the answer is correct. 

If you wish to turn off the  Professional Practice  questions and simply navigate the maze, the cheat code is pressing O key and the K key together.  Also to open the mini map, press the Q key and the P key together.

Advice is welcome.