Problem: Using histological stains on expectorated samples from phlegm (also called "sputum"), scientists can identify MTB under a microscope. Since MTB retains certain stains even after being treated with acidic solution, it is classified as an acid-fast bacillus. The most common acid-fast staining techniques are the ZiehlNeelsen stain and the Kinyoun stain, which dye acid-fast bacilli a bright red that stands out against a blue background. Auramine-rhodamine staining and fluorescence microscopy are also used.
One of the two standard acid-fast staining techniques is the Kinyoun stain; what's the other?
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Answer: ZiehlNeelsen stain

Problem: Downtown area is home to historic neighborhoods and buildings such as the Sir Walter Raleigh Hotel built in the early 20th century, the restored City Market, the Fayetteville Street downtown business district, which includes the PNC Plaza and Wells Fargo Capitol Center buildings, as well as the North Carolina Museum of History, North Carolina Museum of Natural Sciences, North Carolina State Capitol, Peace College, the Raleigh City Museum, Raleigh Convention Center, Shaw University, and St. Augustine's College. The neighborhoods in Old Raleigh include Cameron Park, Boylan Heights, Country Club Hills, Coley Forest, Five Points, Budleigh, Glenwood-Brooklyn, Hayes Barton Historic District, Moore Square, Mordecai, Rosengarten Park, Belvidere Park, Woodcrest, and Historic Oakwood. In the 2000s, an effort by the Downtown Raleigh Alliance was made to separate this area of the city into five smaller districts: Fayetteville Street, Moore Square, Glenwood South, Warehouse (Raleigh), and Capital District (Raleigh). Some of the names have become common place among locals such as the Warehouse, Fayetteville Street, and Glenwood South Districts.
Who joined the neighborhoods together in the early 2000's?
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Answer: unanswerable

Problem: In the PAL region, which covers most of Africa, Asia, Europe, and Oceania, Twilight Princess is the best-selling entry in the Zelda series. During its first week, the game was sold with three of every four Wii purchases. The game had sold 5.82 million copies on the Wii as of March 31, 2011[update], and 1.32 million on the GameCube as of March 31, 2007[update].
What is the name of the area which includes most countries located in North, Central, and South America?
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Answer:
unanswerable