Problem: Northwestern University:

Admissions are characterized as "most selective" by U.S. News & World Report. There were 35,099 applications for the undergraduate class of 2020 (entering 2016), and 3,751 (10.7%) were admitted, making Northwestern one of the most selective schools in the United States. For freshmen enrolling in the class of 2019, the interquartile range (middle 50%) on the SAT was 690760 for critical reading and 710-800 for math, ACT composite scores for the middle 50% ranged from 3134, and 91% ranked in the top ten percent of their high school class.

What percentage of freshman students enrolling in the class of 2019 ranked in the top 10% of their high school class?
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A: 91%

Problem: Gothic architecture:

On the interior of the building attached shafts often sweep unbroken from floor to ceiling and meet the ribs of the vault, like a tall tree spreading into branches. The verticals are generally repeated in the treatment of the windows and wall surfaces. In many Gothic churches, particularly in France, and in the Perpendicular period of English Gothic architecture, the treatment of vertical elements in gallery and window tracery creates a strongly unifying feature that counteracts the horizontal divisions of the interior structure.

What is often found completely broken from floor to ceiling on the interior of Gothic buildings?
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A: unanswerable

Problem: Glass:

New chemical glass compositions or new treatment techniques can be initially investigated in small-scale laboratory experiments. The raw materials for laboratory-scale glass melts are often different from those used in mass production because the cost factor has a low priority. In the laboratory mostly pure chemicals are used. Care must be taken that the raw materials have not reacted with moisture or other chemicals in the environment (such as alkali or alkaline earth metal oxides and hydroxides, or boron oxide), or that the impurities are quantified (loss on ignition). Evaporation losses during glass melting should be considered during the selection of the raw materials, e.g., sodium selenite may be preferred over easily evaporating SeO2. Also, more readily reacting raw materials may be preferred over relatively inert ones, such as Al(OH)3 over Al2O3. Usually, the melts are carried out in platinum crucibles to reduce contamination from the crucible material. Glass homogeneity is achieved by homogenizing the raw materials mixture (glass batch), by stirring the melt, and by crushing and re-melting the first melt. The obtained glass is usually annealed to prevent breakage during processing.

What containers are used for melting?
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A: platinum crucibles

Problem: Chicago Cubs:

On May 11, 2000, Glenallen Hill, facing Brewers starter Steve Woodard, became the first, and thus far only player, to hit a pitched ball onto the roof of a five-story residential building across Waveland Ave, beyond Wrigley Field's left field wall. The shot was estimated at well over 500 feet (150 m), but the Cubs fell to Milwaukee 128. No batted ball has ever hit the center field scoreboard, although the original "Slammin' Sammy", golfer Sam Snead, hit it with a golf ball in an exhibition in the 1950s. In 1948, Bill Nicholson barely missed the scoreboard when he launched a home run ball onto Sheffield Avenue and in 1959, Roberto Clemente came even closer with a home run ball hit onto Waveland Avenue. In 2001, a Sammy Sosa shot landed across Waveland and bounced a block down Kenmore Avenue. Dave Kingman hit a shot in 1979 that hit the third porch roof on the east side of Kenmore, estimated at 555 feet (169 m), and is regarded as the longest home run in Wrigley Field history. On May 26, 2015, the Cubs rookie third baseman, Kris Bryant, hit a homerun that traveled an estimated 477 feet (145 m) off the park's new videoboard in left field. Later the same year, he hit a homer that traveled 495 feet (151 m) that also ricocheted off of the videoboard On October 13, 2015, Kyle Schwarber's 438-foot home run landed on the equally new right field videoboard.

When did the first and only player to hit a pitched ball onto the roof of a five-story building across Waveland Ave?
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A:
May 11, 2000