Here are 3 different sayings encoded using the same code:
INW QVGG ZR UHR CVKUVO NM F ZVJFDDR XNAR.
L: QHI EHNWGS INW FGQFIE ERDCR F ENWUHRDB KFDNGVBF MNNUZFGG OFB
ENWT VB F TGFUR?
F: 'KFWER VM INW PVCR HVO F ZNQG, HR'GG UHDNQ VU FQFI.
KNBEKVRBKR SNUH OFAR KNQFDSE NM WE FGG.
-- EHFARETRFDR
I give up!