Drupal 8.x

I'm sure there's an easy way to do this but can't seem to wrack my brain around it. My site contains sensitive information which I want only for adults use. How can I make a warnign page that once the user has agreed and entered, doesn't show up anymore, and the main page is the home page? I don't want to make the warning page the homepage as they will be directed back there if they click on the logo. I want to logo to go to a normal home page once they have entered.

Hello great and wise community,

I have created an entity reference and linked it to a page. That entity reference will now not except changes at all.

Hello

Hello

Is there a way to change how the default search results are displayed.
It's just a selection of text now.
I just need a basic overview, but with the fields that i like to display.
I thought it was a view, but it's not...

I added a RTL Language translation File (Like: Persian, Farsi) to my drupal 8 site and
What I simply want is to All "Administration Pages language" (or backend Language) in english only and all admin menu Always in left side
and frontend pages of the site(Site Language) in another language (Like: persian, Farsi)

I do below setting: