How to select and remove random array?

Hi.

I have a game where I ask the player questions. I have all the questions stored in an array, and want to pick them at random, then delete them so they don't get picked again. When there's no questions left, I want something to happen.

I've tried multiple ways, but can't find one that does this efficiently. I'm hoping there is an easy way to do this.

Any help is greatly appreciated!

Not a straight example but the idea is listing available index then remove them later one by one: dropbox.com/s/gkmisirvgeraiqx/tempel_simpel.capx

Thanks! Any way this could be simplified and used with array? (Asking for a dumb friend)

Forgot that I already answer similar question using array straightly: dropbox.com/s/zo00dueg3ut7v14/random%20delete%20index.capx

Thank you! Appreciate it!