How to randomise 10 numbers except one of them of them

I intend to randomise 10 numbers (or ten letters/words) to associate the result to a variable that will define the correct number (letter/words). After this, I need to random the 10 numbers (letters/words) again except the number (letter/word) associated to the variable for the user to choose among this number (letter/word) and the correct one.

Not sure I follow what you are asking for but maybe start with this:

var TargetNumber = -1

function Randomize:

For Each Random Number

--If RandomNumber != TargetNumber

---Random Number = floor(Random(1,10))

Of course make sure you are familiar with Random(), Choose(), Floor(), Ceil()

Thank you. I will try to implement it.