Hey all the cats lover here can i ask a few things on persian cats?

1) do they poo and pee much?
2) is their poo and pee stink( as in the smell is very very bad) ?
3) are they easily train?
4) what do they mainly eat?
5) is it hard to take care of?
6) one of the shop keeper told me tat persian cats doesnt poo -.- is it true ( cuz the shop keeper is a philipino )

thanx in advance, want to know more about persian cats before i get 1 .