Problem: Boston:

In 2010, Boston was estimated to have 617,594 residents (a density of 12,200 persons/sq mile, or 4,700/km2) living in 272,481 housing units— a 5% population increase over 2000. The city is the third most densely populated large U.S. city of over half a million residents. Some 1.2 million persons may be within Boston's boundaries during work hours, and as many as 2 million during special events. This fluctuation of people is caused by hundreds of thousands of suburban residents who travel to the city for work, education, health care, and special events.

What is the density of Boston's population?
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A: 12,200 persons/sq mile


Problem: Presbyterianism:

The roots of Presbyterianism lie in the European Reformation of the 16th century; the example of John Calvin's Geneva being particularly influential. Most Reformed churches which trace their history back to Scotland are either presbyterian or congregationalist in government. In the twentieth century, some Presbyterians played an important role in the ecumenical movement, including the World Council of Churches. Many Presbyterian denominations have found ways of working together with other Reformed denominations and Christians of other traditions, especially in the World Communion of Reformed Churches. Some Presbyterian churches have entered into unions with other churches, such as Congregationalists, Lutherans, Anglicans, and Methodists. Presbyterians in the United States came largely from Scotch-Irish immigrants communities, and also from New England Yankee communities that had originally been Congregational but changed because of an agreed-upon "Plan of Union of 1801" for frontier areas.

Which group did Presbyterian churches union with?
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A: Congregationalists, Lutherans, Anglicans, and Methodists


Problem: Tuvalu:

The cuisine of Tuvalu is based on the staple of coconut and the many species of fish found in the ocean and lagoons of the atolls. Desserts made on the islands include coconut and coconut milk, instead of animal milk. The traditional foods eaten in Tuvalu are pulaka, taro, bananas, breadfruit and coconut. Tuvaluans also eat seafood, including coconut crab and fish from the lagoon and ocean. A traditional food source is seabirds (taketake or black noddy and akiaki or white tern), with pork being eaten mostly at fateles (or parties with dancing to celebrate events).

At what event is pork traditionally eaten on Tuvalu?
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A: fateles


Problem: Neptune:

Neptune also resembles Uranus in its magnetosphere, with a magnetic field strongly tilted relative to its rotational axis at 47° and offset at least 0.55 radii, or about 13500 km from the planet's physical centre. Before Voyager 2's arrival at Neptune, it was hypothesised that Uranus's tilted magnetosphere was the result of its sideways rotation. In comparing the magnetic fields of the two planets, scientists now think the extreme orientation may be characteristic of flows in the planets' interiors. This field may be generated by convective fluid motions in a thin spherical shell of electrically conducting liquids (probably a combination of ammonia, methane and water) resulting in a dynamo action.

 What definitely doesn't cause Neptune's extreme orientation?
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A:
unanswerable