Problem: A wrestling match may be declared a no contest if the winning conditions are unable to occur. This can be due to excessive interference, loss of referee's control over the match, one or more participants sustaining debilitating injury not caused by the opponent, or the inability of a scheduled match to even begin. A no contest is a state separate and distinct from a draw a draw indicates winning conditions were met. Although the terms are sometimes used interchangeably in practice, this usage is technically incorrect.
How is no contest related to a draw, if at all?
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Answer: state separate and distinct from a draw

Problem: Muslim scientists placed far greater emphasis on experiment than had the Greeks. This led to an early scientific method being developed in the Muslim world, where significant progress in methodology was made, beginning with the experiments of Ibn al-Haytham (Alhazen) on optics from c. 1000, in his Book of Optics. The law of refraction of light was known to the Persians. The most important development of the scientific method was the use of experiments to distinguish between competing scientific theories set within a generally empirical orientation, which began among Muslim scientists. Ibn al-Haytham is also regarded as the father of optics, especially for his empirical proof of the intromission theory of light. Some have also described Ibn al-Haytham as the "first scientist" for his development of the modern scientific method.
What method did Muslim scientists use more than the Greeks?
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Answer: experiment

Problem: Following the fall of Wu and the turmoil of the Wu Hu uprising against the Jin dynasty (265420), most of elite Chinese families had collaborated with the non-Chinese rulers and military conquerors in the north. Some may have lost social privilege, and took refugee in areas south to Yangtze River. Some of the Chinese refugees from north China might have resided in areas near Hangzhou. For example, the clan of Zhuge Liang (181234), a chancellor of the state of Shu Han from Central Plain in north China during the Three Kingdoms period, gathered together at the suburb of Hangzhou, forming an exclusive, closed village Zhuge Village (Zhege Cun), consisting of villagers all with family name "Zhuge". The village has intentionally isolated itself from the surrounding communities for centuries to this day, and only recently came to be known in public. It suggests that a small number of powerful, elite Chinese refugees from the Central Plain might have taken refugee in south of the Yangtze River. However, considering the mountainous geography and relative lack of agrarian lands in Zhejiang, most of these refugees might have resided in some areas in south China beyond Zhejiang, where fertile agrarian lands and metropolitan resources were available, mainly north Jiangsu, west Fujian, Jiangxi, Hunan, Anhui,and provinces where less cohesive, organized regional governments had been in place. Metropolitan areas of Sichuan was another hub for refugees, given that the state of Shu had long been founded and ruled by political and military elites from the Central Plain and north China. Some refugees from the north China might have found residence in south China depending on their social status and military power in the north. The rump Jin state or the Southern Dynasties vied against some elite Chinese from the Central Plain and south of the Yangtze River.
When was the Jin Dynasty?
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Answer:
265420