Hint for level 3 (in rot13): Bcravat gur gbc ybpx znxrf gur obggbz ybpx hanpprffvoyr, naq ivpr irefn. Fvapr lbh arrq gb bcra obgu ybpxf gb jva, ubj jbhyq lbh tb nobhg gung?
Solution: Bcra obgu ybpxf ng gur fnzr gvzr.
