#1:
Nyy yrggref jvyy snpr gur fnzr jnl (evtug fvqr hc).

#2:
Gur tevq jvyy or svir ol svir.

#2:
Rnpu chmmyr nafjre vf vgf bja cngu, naq fgnegf naq raqf ba na rqtr.

#4:
Bapr lbh unir nffrzoyrq gur tevq, gurer vf bar cngu jvgu yrggref gung jnf abg n chmmyr nafjre. Guvf cngu fgnegf va gur zvqqyr gvyr bs gur gbc ebj jvgu gur yrggre "C".