Problem: Northwestern University:

Northwestern's School of Communication has been especially fruitful in the number of actors, actresses, playwrights, and film and television writers and directors it has produced. Alumni who have made their mark on film and television include Ann-Margret, Warren Beatty, Jodie Markell, Paul Lynde, David Schwimmer, Anne Dudek, Zach Braff, Zooey Deschanel, Marg Helgenberger, Julia Louis-Dreyfus, Jerry Orbach, Jennifer Jones, Megan Mullally, John Cameron Mitchell, Dermot Mulroney, Charlton Heston, Richard Kind, Ana Gasteyer, Brad Hall, Shelley Long, William Daniels, Cloris Leachman, Bonnie Bartlett, Paula Prentiss, Richard Benjamin, Laura Innes, Charles Busch, Stephanie March, Tony Roberts, Jeri Ryan, Kimberly Williams-Paisley, McLean Stevenson, Tony Randall, Charlotte Rae, Paul Lynde, Patricia Neal, Nancy Dussault, Robert Reed, Mara Brock Akil, Greg Berlanti, Bill Nuss, Dusty Kay, Dan Shor, Seth Meyers, Frank DeCaro, Zach Gilford, Nicole Sullivan, Stephen Colbert, Sandra Seacat and Garry Marshall. Directors who were graduated from Northwestern include Gerald Freedman, Stuart Hagmann, Marshall W. Mason, and Mary Zimmerman. Lee Phillip Bell hosted a talk show in Chicago from 1952 to 1986 and co-created the Daytime Emmy Award-winning soap operas The Young and the Restless in 1973 and The Bold and the Beautiful in 1987. Alumni such as Sheldon Harnick, Stephanie D'Abruzzo, Heather Headley, Kristen Schaal, Lily Rabe, and Walter Kerr have distinguished themselves on Broadway, as has designer Bob Mackie. Amsterdam-based comedy theater Boom Chicago was founded by Northwestern alumni, and the school has become a training ground for future The Second City, I.O., ComedySportz, Mad TV and Saturday Night Live talent. Tam Spiva wrote scripts for The Brady Bunch and Gentle Ben. In New York, Los Angeles, and Chicago, the number of Northwestern alumni involved in theater, film, and television is so large that a perception has formed that there's such a thing as a "Northwestern mafia."

Where didn't actor Charlton Heston attend school?
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A: unanswerable

Problem: Samba Schools are large, social entities with thousands of members and a theme for their song and parade each year. In Rio Carnival, samba schoolsparade in the Sambadrome ("sambodromo" in Portuguese). Some of the most famous include GRES Estacao Primeira de Mangueira, GRES Portela, GRES Imperatriz Leopoldinense, GRES Beija-Flor de Nilopolis, GRES Mocidade Independente de Padre Miguel, and recently, Unidos da Tijuca and GRES Uniao da Ilha do Governador. Local tourists pay $500950, depending on the costume, to buy a Samba costume and dance in the parade. Blocos are small informal groups with a definite theme in their samba, usually satirizing the political situation. About 30 schools in Rio gather hundreds of thousands of participants. More than 440 blocos operate in Rio. Bandas are samba musical bands, also called "street carnival bands", usually formed within a single neighborhood or musical back-ground. The Carnival industry chain amassed in 2012 almost US$1 billion in revenues.
About how many Samba schools are in Rio?
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Answer: 30

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On the other hand, the crew on board the spaceship also perceives the observer as slowed down and flattened along the spaceship's direction of travel, because both are moving at very nearly the speed of light relative to each other. Because the outside universe appears flattened to the spaceship, the crew perceives themselves as quickly traveling between regions of space that (to the stationary observer) are many light years apart. This is reconciled by the fact that the crew's perception of time is different from the stationary observer's; what seems like seconds to the crew might be hundreds of years to the stationary observer. In either case, however, causality remains unchanged: the past is the set of events that can send light signals to an entity and the future is the set of events to which an entity can send light signals.
How does the crew board the spaceship perceive the traveling observer?
A: unanswerable

Context and question: As of 2011, there have been six series Digimon Adventure, the follow-up sequel Digimon Adventure 02, Digimon Tamers, Digimon Frontier, Digimon Data Squad and Digimon Fusion. The first two series take place in the same fictional universe, but the third, fourth, fifth and sixth each occupy their own unique world. Each series is commonly based on the original storyline but things are added to make them unique. However, in Tamers, the Adventure universe is referred to as a commercial enterprise a trading card game in Japan, plus a show-within-a-show in the English dub. It also features an appearance by a character from the Adventure universe. In addition, each series has spawned assorted feature films. Digimon still shows popularity, as new card series, video games, and movies are still being produced and released: new card series include Eternal Courage, Hybrid Warriors, Generations, and Operation X; the video game, Digimon Rumble Arena 2; and the previously unreleased movies Revenge of Diaboromon, Runaway Locomon, Battle of Adventurers, and Island of Lost Digimon. In Japan, Digital Monster X-Evolution, the eighth TV movie, was released on January 3, 2005, and on December 23, 2005 at Jump Festa 2006, the fifth series, Digimon Savers was announced for Japan to begin airing after a three-year hiatus of the show. A sixth television series, Digimon Xros Wars, began airing in 2010, and was followed by a second season, which started on October 2, 2011 as a direct sequel to Digimon Xros Wars.
How many series have aired since 2011?
Answer: six series

Question: Alexandria was the most important trade center in the whole empire during Athanasius's boyhood. Intellectually, morally, and politicallyit epitomized the ethnically diverse Graeco-Roman world, even more than Rome or Constantinople, Antioch or Marseilles. Its famous catechetical school, while sacrificing none of its famous passion for orthodoxy since the days of Pantaenus, Clement of Alexandria, Origen of Alexandria, Dionysius and Theognostus, had begun to take on an almost secular character in the comprehensiveness of its interests, and had counted influential pagans among its serious auditors.
Is there an answer to this question: Was Alexandria welcoming to other cultures?

Answer: ethnically diverse

Problem: Black people:

In 2008, the High Court in South Africa ruled that Chinese South Africans who were residents during the apartheid era (and their descendants) are to be reclassified as "Black people," solely for the purposes of accessing affirmative action benefits, because they were also "disadvantaged" by racial discrimination. Chinese people who arrived in the country after the end of apartheid do not qualify for such benefits.

Why was this classification made?
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A:
solely for the purposes of accessing affirmative action benefits