Hints for level 4 below:
(use rot13 to decode them)
- Jung unccraf jura lbh yrnir n fdhner jvgu n tenl fvtvy ba gur tebhaq?
- Jung unccraf jura n funcr yrnirf gur fdhner jvgu n tenl fvtvy ba gur tebhaq?
- Ubj znal gvzrf pna lbh pebff gur zvqqyr jnyy?
- Ubj pna gur checyr K uryc lbh zvavzvmr gur ahzore bs tenl fvtvyf lbh fgrc ba?