Q: Has Ivan the Terrible flown to Europe?
A: no
Explanation: Ivan the Terrible was the 1st Tsar of Russia. Ivan the Terrible died in 1584. The first confirmed person to fly was Jean Francois Pilatre de Rozier in 1783.

Q: Would Republic of Korea Navy dominate Eritrea navy?
A: yes
Explanation: The Republic of Korea Navy has 150 ships, 70 aircraft, 70,000 personnel including 29,000 marines . The Eritrean Navy has 4 ships and an army of 45,000.

Q: Is the Sea of Japan landlocked within Japan?
A: no
Explanation: The sea of Japan touches Japan, Russia and the Koreas. Japan has no landlocked sea.

Q: Would someone with back pain enjoy picking strawberries?
A: no
Explanation:
Back pain may be worsened by repeated bending at the waist. Strawberries grow very close to the ground.