Problem: Washington University in St. Louis:

The school has many nationally and internationally acclaimed scholars in social security, health care, health disparities, communication, social and health policy, and individual and family development. Many of the faculty have training in both social work and public health. The school's current dean is Edward F. Lawlor. In addition to affiliation with the university-wide Institute of Public Health, Brown houses 12 research centers. The Brown School Library collects materials on many topics, with specific emphasis on: children, youth, and families; gerontology; health; mental health; social and economic development; family therapy; and management. The library maintains subscriptions to over 450 academic journals.

To how many academic journals does the Brown School Library subscribe?
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A: over 450 academic journals

Problem: Professional wrestling:

Some fans enjoy a pastime of collecting tapes of wrestling shows from specific companies, of certain wrestlers, or of specific genres. The Internet has given fans exposure to worldwide variations of wrestling they would be unable to see otherwise. Since the 1990s, many companies have been founded which deal primarily in wrestling footage. When the WWF purchased both WCW and ECW in 2001, they also obtained the entire past video libraries of both productions and have released many past matches online and on home video.

What companies did WWF purchase in 2001?
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A: WCW and ECW

Problem: Estonia:

Estonia produces about 75% of its consumed electricity. In 2011 about 85% of it was generated with locally mined oil shale. Alternative energy sources such as wood, peat, and biomass make up approximately 9% of primary energy production. Renewable wind energy was about 6% of total consumption in 2009. Estonia imports petroleum products from western Europe and Russia. Oil shale energy, telecommunications, textiles, chemical products, banking, services, food and fishing, timber, shipbuilding, electronics, and transportation are key sectors of the economy. The ice-free port of Muuga, near Tallinn, is a modern facility featuring good transshipment capability, a high-capacity grain elevator, chill/frozen storage, and new oil tanker off-loading capabilities.[citation needed] The railroad serves as a conduit between the West, Russia, and other points to the East.[citation needed]

How much of consumed electricity does Estonia produce by itself?
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A: 75%

Problem: Seven Years%27 War:

Frederick II of Prussia had received reports of the clashes in North America and had formed an alliance with Great Britain. On 29 August 1756, he led Prussian troops across the border of Saxony, one of the small German states in league with Austria. He intended this as a bold pre-emption of an anticipated Austro-French invasion of Silesia. He had three goals in his new war on Austria. First, he would seize Saxony and eliminate it as a threat to Prussia, then using the Saxon army and treasury to aid the Prussian war effort. His second goal was to advance into Bohemia where he might set up winter quarters at Austria's expense. Thirdly, he wanted to invade Moravia from Silesia, seize the fortress at Olmutz, and advance on Vienna to force an end to the war.

What was another goal of the invasion of Saxony?
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A:
to advance into Bohemia where he might set up winter quarters at Austria's expense