Does acupuncture cause pain in many people?
Acupuncture doesn't usually feel painful for most people. The needles used in acupuncture are very thin and do not go very deep into the skin.
The answer is no.

Phileas Fogg's around the world would be difficult to achieve during Pope John Paul I's reign?
Phileas Fogg is a character in Jules Verne's Around the World in Eighty Days. Phileas Fogg attempts to circumnavigate the globe in 80 days. Pope John Paul I reigned for only 33 days.
The answer is yes.

Could casualties from deadliest war rival France's population?
The deadliest war in history was World War II. Over 56 million people died during World War II. The population of France as of 2019 is 66 million.
The answer is no.

Did Operation Barbarossa or Barbarossa's last expedition succeed?
Operation Barbarossa was the Nazi advance on Russia during World War II. Operation Barbarossa was a failure that resulted in Nazi Germany being pushed back by a Soviet counter offensive. Operation Barbarossa was named after Holy Roman Emperor Frederick Barbarossa. On his final expedition, Frederick Barbarossa drowned while leading an army to help the Crusaders during the Third Crusade. The Crusaders failed to recapture Jerusalem during the Third Crusade without the support of Barbarossa and his troops.
The answer is no.