Entering Input And Clicking Buttons During Loop

I am basically creating a questionnaire style program where the user gets asked 50 questions, one by one and they input their answer and press another button (submit button). They initially press a start button to start the questionnaire.

So far, I have created a range of questions and it fills one row where the questions are entered. In intend to use a for loop to go though all 50 questions.

Now this is where I’m stuck. I have a submit button and after each question is displayed, I want the user to enter their answer and then click the submit button to then continue to the next question.

However, I can’t think of how to do this.

1.Firstly, how can I loop through the questions and yet allow the user to input their answers after each iteration?

2.Also can I even click the submit button during the loop phase? I.e. when already running.