No you cannot get masterballs from the newspaper guy.
i know that in Pokemon diamond pearl and platinum the daycare man is in solacean town
Unown, found Solacean ruins, directly east of Solacean Town.
go to solaceon town and left of Pokemon center
You get one from cyruce in the team galactic HQ. You have to get a key which the galactic guy gives you at the front of the building
I am not sure if you mean the Unown wall, but there are Unown ruins (called Solacean Ruins) to the right of Solacean Town
Solacean Town
you can get some by getting the certain type of Pokemon that the guy in sandgemtown wants and he should repay u with a master ball
you cant buy masterballs i dont think
spend hours in the solacean ruins
in solacean town
solacean ruins i think
no.