Problem: High-definition television:

For example, 19201080p25 identifies progressive scanning format with 25 frames per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i25 or 1080i50 notation identifies interlaced scanning format with 25 frames (50 fields) per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i30 or 1080i60 notation identifies interlaced scanning format with 30 frames (60 fields) per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 720p60 notation identifies progressive scanning format with 60 frames per second, each frame being 720 pixels high; 1,280 pixels horizontally are implied.

The 1920x1080p25 notion identifies progressive scanning format with how many frames per second?
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A: 25

Problem: Miami:

Miami is partitioned into many different sections, roughly into North, South, West and Downtown. The heart of the city is Downtown Miami and is technically on the eastern side of the city. This area includes Brickell, Virginia Key, Watson Island, and PortMiami. Downtown is South Florida's central business district, and Florida's largest and most influential central business district. Downtown has the largest concentration of international banks in the U.S. along Brickell Avenue. Downtown is home to many major banks, courthouses, financial headquarters, cultural and tourist attractions, schools, parks and a large residential population. East of Downtown, across Biscayne Bay is South Beach. Just northwest of Downtown, is the Civic Center, which is Miami's center for hospitals, research institutes and biotechnology with hospitals such as Jackson Memorial Hospital, Miami VA Hospital, and the University of Miami's Leonard M. Miller School of Medicine.

By cardinal direction, what part of the city is referred to as Downtown?
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A: eastern

Problem: Armenia:

A liberal foreign investment law was approved in June 1994, and a law on privatisation was adopted in 1997, as well as a program of state property privatisation. Continued progress will depend on the ability of the government to strengthen its macroeconomic management, including increasing revenue collection, improving the investment climate, and making strides against corruption. However, unemployment, which currently stands at around 15%, still remains a major problem due to the influx of thousands of refugees from the Karabakh conflict.

What is the unemployment rate in Armenia?
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A: 15%

Problem: Multiracial American:

After a lengthy period of formal racial segregation in the former Confederacy following the Reconstruction Era, and bans on interracial marriage in various parts of the country, more people are openly forming interracial unions. In addition, social conditions have changed and many multiracial people do not believe it is socially advantageous to try to "pass" as white. Diverse immigration has brought more mixed-race people into the United States, such as the large population of Hispanics identifying as mestizos. Since the 1980s, the United States has had a growing multiracial identity movement (cf. Loving Day). Because more Americans have insisted on being allowed to acknowledge their mixed racial origins, the 2000 census for the first time allowed residents to check more than one ethno-racial identity and thereby identify as multiracial. In 2008 Barack Obama was elected as the first multiracial President of the United States; he acknowledges both sides of his family and identifies as African American.

When did the census begin allowing multiple boxes to be checked?
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A:
2000