2.42.3 Can you answer these questions?

2.42.3.1 Page numbering in top corner
2.42.3.2 Coordinates within a TikZ node
2.42.3.3 Removing lines from Syntactic tree in tikz-qtree

Can you answer these?

2.42.3.1 Page numbering in top corner

http://tex.stackexchange.com/questions/336602/page-numbering-in-top-corner

I want to number my pages in the top corner, left or right - it depends on the side of book, the left page in book should have number on the left side and the right page on the right side. It works  ...
 
- asked by user117508 3votes
2.42.3.2 Coordinates within a TikZ node

http://tex.stackexchange.com/questions/336773/coordinates-within-a-tikz-node

I have a document with multiple variations on what is essentially the same image, and using this question and answer, I was able to simplify things a lot. 
When I draw pictures, I usually use many  ...
                                                                                  

                                                                                  
 
- asked by Robbie 2votes
2.42.3.3 Removing lines from Syntactic tree in tikz-qtree

http://tex.stackexchange.com/questions/337282/removing-lines-from-syntactic-tree-in-tikz-qtree

I'm trying to remove the lines under the V heads (connecting V to "likes"). I've tried one solution: adding the line 
\tikzset{every tree node/.style={align=center, anchor=north}} 
which let me get  ...
 
- asked by moz 2votes