Drop Down List to Dynamically Display Content

Hello, I have been wracking my brain trying to figure out the best way to accomplish this. Suppose I have a content type called FAQ which has a title, body, and an additional text field. The FAQ page will have a drop down list that shows all the FAQ titles, and when you click on one, it will display the title, body, and additional text below.

When you click on the desired FAQ, it should load in the same page and still display the drop down list, so that you can go through desired FAQ items. I have been struggling with Views, Panels, and Display Suite to figure how to do it.

Any help?

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed