Here are 3 different sayings encoded using the same code:
Y: BIU LZGE TCRANTGNRZFRANA JITA RN NZOT NI AQPTU RG Z FRKBN XVFX?
Z: NUI. IGT NI AQPTU RN RG ZGJ IGT NI IXATPHT BIU NBT FRKBN XVFX
RNATFS AELXIFRDTA Z ARGKFT RGQZGJTAQTGN XTZQIG IS AVXWTQNRHT
PTZFRNE RG Z GTNBTPUIPFJ IS TGJFTAA ZXAVPJRNE PTZQBRGK IVN NIUZPJ Z
LZVJFRG QIALIA IS GINBRGKGTAA.
NPE NI PTFZC ZGJ TGWIE NBT QPRARA.
-- ZABFTRKB XPRFFRZGN
EIV URFF XT ARGKFTJ IVN SIP MPILINRIG RG EIVP UIPO.
I give up!