QUES: Q: What is the lowest altitude where acclimatization or a suit is not needed to prevent sickness in humans?
A: The colder air temperatures found at altitudes of up to 3 km generally compensate for the lower pressures there.
Does the answer answer the question?

ANS: yes

QUES: Q: What empire were the controlled lands surrounding Constantinople formerly controlled by?
A: The empire had managed to control nearly all former Byzantine lands surrounding the city, but in 1402 the Byzantines were temporarily relieved when the Turco-Mongol leader Timur, founder of the Timurid Empire, invaded Anatolia from the east.
Does the answer answer the question?

ANS: yes

QUES: Q: In what year was the Imperial Tientsin University founded in China?
A: To this day, about half of China's elite universities remain essentially polytechnical.
Does the answer answer the question?

ANS: no

QUES: Q: In what year were Jews kicked out of Spain?
A: The Jews were expelled from Spain in 1492, and dispersed to Turkey, France, Italy, and Holland.
Does the answer answer the question?

ANS:
yes