Problem: Cork (city):

The most notable cricket club in Cork is Cork County Cricket Club, which was formed in 1874. Although located within the Munster jurisdiction, the club plays in the Leinster Senior League. The club plays at the Mardyke, a ground which has hosted three first-class matches in 1947, 1961 and 1973. All three involved Ireland playing Scotland. The Cork Cricket Academy operates within the city, with the stated aim of introducing the sport to schools in the city and county. Cork's other main cricket club, Harlequins Cricket Club, play close to Cork Airport.

What Cricket club was formed in the 18th century?
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A: unanswerable


Problem: List of numbered streets in Manhattan:

The many institutions on 187th Street include Mount Sinai Jewish Center, the Dombrov Shtiebel, and the uptown campus of Yeshiva University. The local public elementary school P.S. 187 is located on Cabrini Boulevard, just north of the eponymous 187th Street 

On what street is the Dombrov Shtiebel?
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A: 187th Street


Problem: Planck constant:

A watt balance is an instrument for comparing two powers, one of which is measured in SI watts and the other of which is measured in conventional electrical units. From the definition of the conventional watt W90, this gives a measure of the product KJ2RK in SI units, where RK is the von Klitzing constant which appears in the quantum Hall effect. If the theoretical treatments of the Josephson effect and the quantum Hall effect are valid, and in particular assuming that RK = h/e2, the measurement of KJ2RK is a direct determination of the Planck constant.

If the effects are valid, for RK = n/e2, what is the measurement of KJ2RK equal to?
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A: the Planck constant


Problem: Printed circuit board:

Electrochemical migration (ECM) is the growth of conductive metal filaments on or in a printed circuit board (PCB) under the influence of a DC voltage bias. Silver, zinc, and aluminum are known to grow whiskers under the influence of an electric field. Silver also grows conducting surface paths in the presence of halide and other ions, making it a poor choice for electronics use. Tin will grow "whiskers" due to tension in the plated surface. Tin-Lead or solder plating also grows whiskers, only reduced by the percentage Tin replaced. Reflow to melt solder or tin plate to relieve surface stress lowers whisker incidence. Another coating issue is tin pest, the transformation of tin to a powdery allotrope at low temperature.

What material is a good choice for electronics use?
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A:
unanswerable