Problem: Rajasthan:

Traditionally the Rajputs, Jats, Meenas, Gurjars, Bhils, Rajpurohit, Charans, Yadavs, Bishnois, Sermals, PhulMali (Saini) and other tribes made a great contribution in building the state of Rajasthan. All these tribes suffered great difficulties in protecting their culture and the land. Millions of them were killed trying to protect their land. A number of Gurjars had been exterminated in Bhinmal and Ajmer areas fighting with the invaders. Bhils once ruled Kota. Meenas were rulers of Bundi and the Dhundhar region.

What tribe formerly ruled Kota?
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A: Bhils

Problem: Public and private schools in Hyderabad are governed by the Central Board of Secondary Education and follow a "10+2+3" plan. About two-thirds of pupils attend privately run institutions. Languages of instruction include English, Hindi, Telugu and Urdu. Depending on the institution, students are required to sit the Secondary School Certificate or the Indian Certificate of Secondary Education. After completing secondary education, students enroll in schools or junior colleges with a higher secondary facility. Admission to professional graduation colleges in Hyderabad, many of which are affiliated with either Jawaharlal Nehru Technological University Hyderabad (JNTUH) or Osmania University (OU), is through the Engineering Agricultural and Medical Common Entrance Test (EAM-CET).
What entity controls the schools in Hyderabad?
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Answer: Central Board of Secondary Education

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The BYU Ballroom Dance Company is known as one of the best formation ballroom dance teams in the world, having won the U.S. National Formation Dance Championship every year since 1982. BYU's Ballroom dance team has won first place in Latin or Standard (or both) many times when they have competed at the Blackpool Dance Festival, and they were the first U.S. team to win the formation championships at the famed British Championships in Blackpool, England in 1972 . The NDCA National DanceSport championships have been held at BYU for several years, and BYU holds dozens of ballroom dance classes each semester and is consequently the largest collegiate ballroom dance program in the world. In addition, BYU has a number of other notable dance teams and programs. These teams include the Theatre Ballet, Contemporary Dance Theatre, Living Legends, and International Folk Dance Ensemble. The Living Legends perform Latin, Native American, and Polynesian dancing. BYU boasts one of the largest dance departments in the nation. Many students from all different majors across campus participate in various dance classes each semester.
What dance championships have been held at BYU for several years?
A: NDCA National DanceSport

Context and question: In parallel, however, the 19th century saw a Catalan literary revival (Renaixenca), which has continued up to the present day. This period starts with Aribau's Ode to the Homeland (1833); followed in the second half of the 19th century, and the early 20th by the work of Verdaguer (poetry), Oller (realist novel), and Guimera (drama).
When did Aribau write Ode to the Homeland?
Answer: 1833

Question: The governing bodies in each country operate league systems in a domestic season, normally comprising several divisions, in which the teams gain points throughout the season depending on results. Teams are placed into tables, placing them in order according to points accrued. Most commonly, each team plays every other team in its league at home and away in each season, in a round-robin tournament. At the end of a season, the top team is declared the champion. The top few teams may be promoted to a higher division, and one or more of the teams finishing at the bottom are relegated to a lower division.
Is there an answer to this question: Who operate league systems?

Answer: governing bodies

Problem: Gregorian calendar:

The Gregorian reform contained two parts: a reform of the Julian calendar as used prior to Pope Gregory XIII's time and a reform of the lunar cycle used by the Church, with the Julian calendar, to calculate the date of Easter. The reform was a modification of a proposal made by Aloysius Lilius. His proposal included reducing the number of leap years in four centuries from 100 to 97, by making 3 out of 4 centurial years common instead of leap years. Lilius also produced an original and practical scheme for adjusting the epacts of the moon when calculating the annual date of Easter, solving a long-standing obstacle to calendar reform.

What was the first reform concerning the calendar?
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A:
Julian calendar