Problem: Pacific War:

In mainland China, the Japanese 3rd, 6th, and 40th Divisions massed at Yueyang and advanced southward in three columns and crossed the Xinqiang River, and tried again to cross the Miluo River to reach Changsha. In January 1942, Chinese forces got a victory at Changsha which was the first Allied success against Japan.
After the Doolittle Raid, the Japanese army conducted a massive sweep through Zhejiang and Jiangxi of China, now known as the Zhejiang-Jiangxi Campaign, with the goal of searching out the surviving American airmen, applying retribution on the Chinese who aided them and destroying air bases. This operation started on 15 May 1942 with 40 infantry battalions and 15–16 artillery battalions but was repelled by Chinese forces in September. During this campaign, The Imperial Japanese Army left behind a trail of devastation and had also spread cholera, typhoid, plague and dysentery pathogens. Chinese estimates put the death toll at 250,000 civilians. Around 1,700 Japanese troops died out of a total 10,000 Japanese soldiers who fell ill with disease when their own biological weapons attack rebounded on their own forces.
On 2 November 1943, Isamu Yokoyama, commander of the Imperial Japanese 11th Army, deployed the 39th, 58th, 13th, 3rd, 116th and 68th divisions, a grand total of around 100,000 troops, to attack Changde of China. During the seven-week Battle of Changde, the Chinese forced Japan to fight a costly war of attrition. Although the Japanese army initially successfully captured the city, the Chinese 57th division was able to pin them down long enough for reinforcements to arrive and encircle the Japanese. The Chinese army then cut off the Japanese supply lines, forcing them into retreat, whereupon the Chinese pursued their enemy. During the battle, in an act of desperation, Japan used chemical weapons.
In the aftermath of the Japanese conquest of Burma, there was widespread disorder in eastern India, and a disastrous famine in Bengal, which ultimately caused up to 3 million deaths. In spite of these, and inadequate lines of communication, British and Indian forces attempted limited counter-attacks in Burma in early 1943. An offensive in Arakan failed, while a long distance raid mounted by the Chindits under Brigadier Orde Wingate suffered heavy losses, but was publicized to bolster Allied morale. It also provoked the Japanese to mount major offensives themselves the following year.

How many Chinese civilians were estimated to have died during the Japanese Zhejiang-Jiangxi Campaign?
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A: 250,000


Problem: Dissolution of the Soviet Union:

Thousands of Muscovites came out to defend the White House (the Russian Federation's parliament and Yeltsin's office), the symbolic seat of Russian sovereignty at the time. The organizers tried but ultimately failed to arrest Yeltsin, who rallied opposition to the coup with speech-making atop a tank. The special forces dispatched by the coup leaders took up positions near the White House, but members refused to storm the barricaded building. The coup leaders also neglected to jam foreign news broadcasts, so many Muscovites watched it unfold live on CNN. Even the isolated Gorbachev was able to stay abreast of developments by tuning into BBC World Service on a small transistor radio.

Who did the organizers want to arrest?
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A: Yeltsin


Problem: Comprehensive school:

Finland has used comprehensive schools since the 1970s, in the sense that everyone is expected to complete the nine grades of peruskoulu, from the age 7 to 16. The division to lower comprehensive school (grades 1–6, ala-aste, alakoulu) and upper comprehensive school (grades 7–9, yläaste, yläkoulu) has been discontinued.

In what decade did Finland stop employing comprehensive schools?
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A: unanswerable


Problem: Houston:

The Houston area is a leading center for building oilfield equipment. Much of its success as a petrochemical complex is due to its busy ship channel, the Port of Houston. In the United States, the port ranks first in international commerce and tenth among the largest ports in the world. Unlike most places, high oil and gasoline prices are beneficial for Houston's economy, as many of its residents are employed in the energy industry. Houston is the beginning or end point of numerous oil, gas, and products pipelines:

 Where does the Port of Texas rank in international commerce?
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A:
unanswerable