Question: Nanjing has a humid subtropical climate (Köppen Cfa) and is under the influence of the East Asian monsoon. The four seasons are distinct, with damp conditions seen throughout the year, very hot and muggy summers, cold, damp winters, and in between, spring and autumn are of reasonable length. Along with Chongqing and Wuhan, Nanjing is traditionally referred to as one of the "Three Furnacelike Cities" along the Yangtze River (长江流域三大火炉) for the perennially high temperatures in the summertime. However, the time from mid-June to the end of July is the plum blossom blooming season in which the meiyu (rainy season of East Asia; literally "plum rain") occurs, during which the city experiences a period of mild rain as well as dampness. Typhoons are uncommon but possible in the late stages of summer and early part of autumn. The annual mean temperature is around 15.46 °C (59.8 °F), with the monthly 24-hour average temperature ranging from 2.4 °C (36.3 °F) in January to 27.8 °C (82.0 °F) in July. Extremes since 1951 have ranged from −14.0 °C (7 °F) on 6 January 1955 to 40.7 °C (105 °F) on 22 August 1959. On average precipitation falls 115 days out of the year, and the average annual rainfall is 1,062 millimetres (42 in). With monthly percent possible sunshine ranging from 37 percent in March to 52 percent in August, the city receives 1,983 hours of bright sunshine annually.
Try to answer this question if possible: What type of climate does Nanjing enjoy?
Answer: a humid subtropical climate
Question: Menander Protector mentions a Daurentius (577–579) that slew an Avar envoy of Khagan Bayan I. The Avars asked the Slavs to accept the suzerainty of the Avars, he however declined and is reported as saying: "Others do not conquer our land, we conquer theirs – so it shall always be for us".
Try to answer this question if possible: Who did the Avar envoy slaughter?
Answer: unanswerable
Question: 26 March 1991 is the day that marks the clash between military soldiers and peaceful demonstrating students which climaxed in the massacre of dozens under the orders of then President Moussa Traoré. He and three associates were later tried and convicted and received the death sentence for their part in the decision-making of that day. Nowadays, the day is a national holiday in order to remember the tragic events and the people that were killed.[unreliable source?] The coup is remembered as Mali's March Revolution of 1991.
Try to answer this question if possible: How many people aside from the president received a death sentence? 
Answer: three associates
Question: The first Europeans to disembark and explore the region were the Portuguese navigators Diogo Cão in 1485 and Bartolomeu Dias in 1486; still the region was not claimed by the Portuguese crown. However, like most of Sub-Saharan Africa, Namibia was not extensively explored by Europeans until the 19th century, when traders and settlers arrived, principally from Germany and Sweden. In the late 19th century Dorsland trekkers crossed the area on their way from the Transvaal to Angola. Some of them settled in Namibia instead of continuing their journey.
Try to answer this question if possible: When did Bartolomeu Dias explore Namibia? 
Answer:
1486