The problem: Answer a question about this article:
Roosevelt Boulevard and the Roosevelt Expressway (U.S. 1) connect Northeast Philadelphia with Center City. Woodhaven Road (Route 63), built in 1966, and Cottman Avenue (Route 73) serve the neighborhoods of Northeast Philadelphia, running between Interstate 95 and the Roosevelt Boulevard (U.S. 1). The Fort Washington Expressway (Route 309) extends north from the city's northern border, serving Montgomery County and Bucks County. U.S. 30, extending east-west from West Philadelphia to Lancaster, is known as Lancaster Avenue throughout most of the city and through the adjacent Main Line suburbs.
When was Woodhaven road built?
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The answer: 1966

The problem: Answer a question about this article:
In the early days of association football, known simply as football or soccer, friendly matches (or "friendlies") were the most common type of match. However, since the development of The Football League in England in 1888, league tournaments became established, in addition to lengthy derby and cup tournaments. By the year 2000, national leagues were established in almost every country throughout the world, as well as local or regional leagues for lower level teams, thus the significance of friendlies has seriously declined since the 19th century.
What did the growth of national leagues cause a serious decline in?
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The answer: the significance of friendlies

The problem: Answer a question about this article:
Most former British colonies and protectorates are among the 53 member states of the Commonwealth of Nations, a non-political, voluntary association of equal members, comprising a population of around 2.2 billion people. Sixteen Commonwealth realms voluntarily continue to share the British monarch, Queen Elizabeth II, as their head of state. These sixteen nations are distinct and equal legal entities the United Kingdom, Australia, Canada, New Zealand, Papua New Guinea, Antigua and Barbuda, The Bahamas, Barbados, Belize, Grenada, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Solomon Islands and Tuvalu.
How many Commonwealth nations are there?
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The answer: 53

The problem: Answer a question about this article:
Bacterial species differ in the number and arrangement of flagella on their surface; some have a single flagellum (monotrichous), a flagellum at each end (amphitrichous), clusters of flagella at the poles of the cell (lophotrichous), while others have flagella distributed over the entire surface of the cell (peritrichous). The bacterial flagella is the best-understood motility structure in any organism and is made of about 20 proteins, with approximately another 30 proteins required for its regulation and assembly. The flagellum is a rotating structure driven by a reversible motor at the base that uses the electrochemical gradient across the membrane for power. This motor drives the motion of the filament, which acts as a propeller.
What is monotrichous?
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The answer:
single flagellum