problem with quiz game

I guess you are referring to this tutorial? Live Session: Quiz Game 1 My first thought would be to shuffle the array allRoundData in the DataController script in it's Start Method. To get an idea of how to shuffle an array you could have a look at this other answer. Shuffle objects in object array randomly in c#

Just going through this and kinda figured this out. not sure if you still need this. but might help someone in the future. Its still not polished as im also in the midst of making this into what i want but..

The concept is to change up the value allRoundData[] in DataController.cs and changing it when its done.

so what i did was. DataController.cs

 //create new variable
 private int roundnum;
     
     void Start ()  
         { 
             roundnum = 0 // set this to 0 at start
         }
     
     public RoundData GetCurrentRoundData()
         {
             return allRoundData [roundnum];
         }
     
     //to level up when a round ends
      public void LevelUp()
         {
             roundnum++;
         }
 

Then in GameController.cs add this method to update the allRoundData[]

 public void NextRound()
     {
         dataController.LevelUp();
         dataController = FindObjectOfType<DataController>();                             
 
         currentRoundData = dataController.GetCurrentRoundData();                           
         questionPool = currentRoundData.questions;                                          
 
         timeRemaining = currentRoundData.timeLimitInSeconds;                             
         UpdateTimeRemainingDisplay();
         playerScore = 0;
         questionIndex = 0;
 
         ShowQuestion();
         isRoundActive = true;
 
     }

The main thing is to play around with your allRoundData[] array. might not be a super clean code, im just learning unity and c# too.