These two pages are almost identical: 

 1.  [/help/how-to-ask][1] 
 2.  [/questions/how-to-ask][2]

Except for some *little differences*.  Help center links to 1, the magic link `[ask]` points to 2. There are "related articles" in the sidebar of 2, but the sidebar of 1 is filled with links to other Help Center articles. There's a search bar in 2, but not in 1. 

I  vote to close one of these pages as a duplicate of the other.

Same story with answering: one page in Help Center, one linked from `[answer]` magic link. 

 1. [/help/how-to-answer][3]
 2. [/questions/how-to-answer][4]


  [1]: https://meta.stackexchange.com/help/how-to-ask
  [2]: https://meta.stackexchange.com/questions/how-to-ask
  [3]: https://meta.stackexchange.com/help/how-to-answer
  [4]: https://meta.stackexchange.com/questions/how-to-answer