Misc: which is the most ancient walled city?

Questions

Presley elvis presley appeared on how many stamps in 1993?

Presley?

Press Hybrid offspring of the jackass (male ass) and the mare, much used and valued in many parts of the world as a beast of burden.?

Prince George of England and his brother, Prince Albert Victor, witnessed this legendary ghost ship in 1881.?

Process of printing developed in 1798 by the german map inspector aloys senefelder?