When I did it in Umbraco, I created a FAQ list on the site using blocklistitem. I added 20 contents to the detailed information page, but I want to pull the first 5 contents on the home page, but I need to do this using only blocklistitem. How can I do this? I learned that there is something called Macro, but will it solve my problem?

I added an faq list in Umbootstrap using nested content in the side nested content inside a block grid. Although I understand you wish to populate the items on the homepage programmatically the technique that I have used means that you can copy and paste individual FAQs to an identical block on the home page in minutes. https://umbootstrap.com/features/feature-faqs/

I think I didn't explain my question fully, I have a page called detailed information and I entered 20 FAQ questions and answers, it works great, but I want to print the first **5 FAQ **question answers on the home page, and I want to pull the ones directly on that page without having to re-enter the home page as an extra.

You explained perfectly @Batuhan hence me stating "Although I understand you wish to populate the items on the homepage programmatically" I was just suggesting using blocks is expectionaly quick to copy and paste. Often when clients have asked for the first five news items to be public on the homepage automatically we then get a request for one of them to be removed which point we usually give them a picker instead. Regardless to implement your requirements it may be easier to store the faq's as nodes and therefore you can publish them as you see fit in any page in the site with a simple query.

+1 for "picker instead". Until it's not exactly the same text that should be displayed on the homepage, at which point etc