-how to add post,how to delete post,how to edit post,set post as draft
-how to add media in posts
-how change screen or column of post page from admin panel
-how view post from frontend
-how set post category
-how set post tag
-how to show specific numbers of post on per page in admin panel
-how add media in post and post comments overview
-how to search post in wordpress admin panel
this video has answers of all these above’s questions.
How wordpress Posts Works,add,delete,edit post,set post as draft,set post category,tags and media,search post,screen option for Number of post on per page.