Post Screen
To view all the Post in your site:
1. Log in to your WordPress admin.
2. Click Post in the left sidebar. And this will show the Post screen with a list of all the post you have in your site.
Pages Screen
To view all the Pages in your site:
1. Log in to your WordPress admin.
2. Click Pages in the left sidebar. And this will show the Pages screen with a list of all the pages you have in your site.