Ravenclaw common room/The Question at the door?

[career advisor]

No: HPFGUIDX 175534

Here''s my question about the Ravenclaw common room, what keeps the intelligent of other houses out? Mcgonagall is able to get in easy enough. Sure it keeps out the Crabbes and Goyles and Carrows of Hogwarts out and I could see Ron having a tough time. But Malfoy would be smart enough to get in, wouldn't he?  
   
  Or are all the questions and answers related to Ravenclaw maxims like: "Wit beyond measure is mans greatest pleasure." That only a Ravenclaw would know. What I'm asking is could Hermione have bluffed her way into that room?  
   
  (BTW DID JKR make that one up or was that already a famous saying or quote from elsewhere?) 
   
  The location is secret, like the other rooms, but anyone who could answer the question could get in. Did Rowena Ravenclaw just asume that all evil doers are dumb (or was that just JKR LOL!)? Or is the location of the knock Luna used secret? Do you have to knock in the right place to get the Eaglehead knocker to speak to you? In other words, do Ravenclaws have a secret knock? 
   
  What do you think?  
   
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  DA Jones

       
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