Question: what is the most powerful weapon ever?
Answer: The Soviet RDS-220 hydrogen bomb (code name Ivan or Vanya), also known as Tsar Bomba (Russian: Царь-бо́мба, tr. Tsar'-bómba, IPA: [t͡sarʲ ˈbombə], lit. 'Tsar bomb'), was the most powerful nuclear weapon ever created and tested.