Problem: Detroit:

Beginning with its incorporation in 1802, Detroit has had a total of 74 mayors. Detroit's last mayor from the Republican Party was Louis Miriani, who served from 1957 to 1962. In 1973, the city elected its first black mayor, Coleman Young. Despite development efforts, his combative style during his five terms in office was not well received by many suburban residents. Mayor Dennis Archer, a former Michigan Supreme Court Justice, refocused the city's attention on redevelopment with a plan to permit three casinos downtown. By 2008, three major casino resort hotels established operations in the city.

What was Dennis Archer's former occupation?
---
A: Supreme Court Justice


Problem: Zinc:

Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest mineable amounts are found in Australia, Asia, and the United States. Zinc production includes froth flotation of the ore, roasting, and final extraction using electricity (electrowinning).

What other element on the periodic table is zinc similar to?
---
A: magnesium


Problem: Economy of Greece:

In addition to the above, Greece is also to start oil and gas exploration in other locations in the Ionian Sea, as well as the Libyan Sea, within the Greek exclusive economic zone, south of Crete. The Ministry of the Environment, Energy and Climate Change announced that there was interest from various countries (including Norway and the United States) in exploration, and the first results regarding the amount of oil and gas in these locations were expected in the summer of 2012. In November 2012, a report published by Deutsche Bank estimated the value of natural gas reserves south of Crete at €427 billion.

What is Greece going to stop exploring the Ionian Sea for?
---
A: unanswerable


Problem: United States presidential election, 2004:

In sheer numbers, Kerry had fewer endorsements than Howard Dean, who was far ahead in the superdelegate race going into the Iowa caucuses in January 2004, although Kerry led the endorsement race in Iowa, New Hampshire, Arizona, South Carolina, New Mexico and Nevada. Kerry's main perceived weakness was in his neighboring state of New Hampshire and nearly all national polls. Most other states did not have updated polling numbers to give an accurate placing for the Kerry campaign before Iowa. Heading into the primaries, Kerry's campaign was largely seen as in trouble, particularly after he fired campaign manager Jim Jordan. The key factors enabling it to survive were when fellow Massachusetts Senator Ted Kennedy assigned Mary Beth Cahill to be the campaign manager, as well as Kerry's mortgaging his own home to lend the money to his campaign (while his wife was a billionaire, campaign finance rules prohibited using one's personal fortune). He also brought on the "magical" Michael Whouley who would be credited with helping bring home the Iowa victory the same as he did in New Hampshire for Al Gore in 2000 against Bill Bradley.

What was one area that Kennedy was seen as being weak in?
---
A:
unanswerable