54.1
http://www.weffriddles.com/gut.html
you multiply two letters at a time in equals and reduce it by substracting 26 until it is within 1-26
54.2
http://www.weffriddles.com/wr2/nil.html
you look at the source code to get breeze.html, and notice alhpa.png, you then find beta.png and gamma.png to get the letters
as for 54.3 and 54.4 i am just as lost as everyone else