Are all Zombies Old and Wise?

Not at all. You can become a zombie at any age (yes there is such thing as a child zombie). Also zombies don't age...we decay until we become, well...ashes, pretty much like all things in nature.

An old zombie, when he or she becomes a zombie, can be already wise -like me- or pretty much stupid and drooling, like most doctor like to keep humans when they age. If you want to meet a wise zombie, just ask a smart question to his ear... with the answer you will know if you got a wise one or a hungry one.