Problem: Dwight D. Eisenhower:

The Democrats gained a majority in both houses in the 1954 election. Eisenhower had to work with the Democratic Majority Leader Lyndon B. Johnson (later U.S. president) in the Senate and Speaker Sam Rayburn in the House, both from Texas. Joe Martin, the Republican Speaker from 1947 to 1949 and again from 1953 to 1955, wrote that Eisenhower "never surrounded himself with assistants who could solve political problems with professional skill. There were exceptions, Leonard W. Hall, for example, who as chairman of the Republican National Committee tried to open the administration's eyes to the political facts of life, with occasional success. However, these exceptions were not enough to right the balance."

Who was made Senate Majority Leader after the 1954 election?
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A: Lyndon B. Johnson

Problem: Miami:

Miami (/mami/; Spanish pronunciation: [maiami]) is a city located on the Atlantic coast in southeastern Florida and the seat of Miami-Dade County. The 44th-most populated city proper in the United States, with a population of 430,332, it is the principal, central, and most populous city of the Miami metropolitan area, and the second most populous metropolis in the Southeastern United States after Washington, D.C. According to the U.S. Census Bureau, Miami's metro area is the eighth-most populous and fourth-largest urban area in the United States, with a population of around 5.5 million.

How many people live in Miami?
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A: 430,332

Problem: Antarctica:

The first semi-permanent inhabitants of regions near Antarctica (areas situated south of the Antarctic Convergence) were British and American sealers who used to spend a year or more on South Georgia, from 1786 onward. During the whaling era, which lasted until 1966, the population of that island varied from over 1,000 in the summer (over 2,000 in some years) to some 200 in the winter. Most of the whalers were Norwegian, with an increasing proportion of Britons. The settlements included Grytviken, Leith Harbour, King Edward Point, Stromness, Husvik, Prince Olav Harbour, Ocean Harbour and Godthul. Managers and other senior officers of the whaling stations often lived together with their families. Among them was the founder of Grytviken, Captain Carl Anton Larsen, a prominent Norwegian whaler and explorer who, along with his family, adopted British citizenship in 1910.

Who adopted British citizenship in 1901?
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A: unanswerable

Problem: Pesticide:

DDT, sprayed on the walls of houses, is an organochlorine that has been used to fight malaria since the 1950s. Recent policy statements by the World Health Organization have given stronger support to this approach. However, DDT and other organochlorine pesticides have been banned in most countries worldwide because of their persistence in the environment and human toxicity. DDT use is not always effective, as resistance to DDT was identified in Africa as early as 1955, and by 1972 nineteen species of mosquito worldwide were resistant to DDT.

How long has DDT been banned worldwide?
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A:
unanswerable