PPSC Past Paper Assistant (BS-16), Punjab Public Service Commission 2019 Solved MCQs, General Knowledge MCQs, PPSC Solved Past Papers MCQsRecently which of the following country has pulled out from “Open Skies Treaty” following the United States?A. Russia B. Israel C. France D. None of these When Gymnastics were added to Olympics?Which country changed ‘one word’ its national anthem recently?