Hello @SPS-DEV-22,
I would recommend giving each question it's own label to be populated by the dropdown selection, and each response it's own textbox. below are some screenshots as an example.


You will put the problems to be selected in the dropdown, then the labels will be populated with the questions corresponding to the problem selected from the dropdown, with a textbox below it for the user to respond to the question. I used Test for my dropdown values, you will use whatever the 'Problem' is.
Code for Label1 is as follows:
If(Dropdown.Selected.Value = "Problem1", "Question 1.1 Goes Here", Dropdown.Selected.Value = "Problem2","Question 1.2 Goes Here")
Code for Label2 is as follows:
If(Dropdown.Selected.Value = "Problem1", "Question 2.1 Goes Here", Dropdown.Selected.Value = "Problem2","Question 2.2 Goes Here")
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