This is a list of types of ciphers that are encrypted with their own ciphers.  If a given cipher requires a key, then the cipher is the key as well.  Also these are all actual ciphers, not methods to crack them like "frequency analysis".  It will require some brute-force, but they are all classically well-known ciphers and I believe most will be easy and some even trivial. This is posed as a challenge who can get them all first and also a good resource for newcomers wanting to learn some basic ciphers commonly used. Good luck!

Fact: I am actually a newbie myself and am probably missing many good ciphers and I would like to add to this list. If so, comment that cipher encrypted in its own cipher so that I don't even know what it is. Then I'll try to figure it out and add it.

    1) EBG GUVEGRRA 
 
    2) #~%\cf  

    3) QQMIAIII  

    4) MGAARNA  

    5) LAYFPYRB 

    6) 01100010 01101001 01101110 01100001 01110010 01111001 01110100 01101111 
       01110100 01100101 01111000 01110100

<!  7) Steganography