Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 2002, the Musharraf-led government took a firm stand against the jihadi organizations and groups promoting extremism, and arrested Maulana Masood Azhar, head of the Jaish-e-Mohammed, and Hafiz Muhammad Saeed, chief of the Lashkar-e-Taiba, and took dozens of activists into custody. An official ban was imposed on the groups on 12 January. Later that year, the Saudi born Zayn al-Abidn Muhammed Hasayn Abu Zubaydah was arrested by Pakistani officials during a series of joint U.S.-Pakistan raids. Zubaydah is said to have been a high-ranking al-Qaeda official with the title of operations chief and in charge of running al-Qaeda training camps. Other prominent al-Qaeda members were arrested in the following two years, namely Ramzi bin al-Shibh, who is known to have been a financial backer of al-Qaeda operations, and Khalid Sheikh Mohammed, who at the time of his capture was the third highest-ranking official in al-Qaeda and had been directly in charge of the planning for the 11 September attacks.
What group did Maulana Masood Azhar lead?
A: Jaish-e-Mohammed

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
As the Tokugawa period progressed more value became placed on education, and the education of females beginning at a young age became important to families and society as a whole. Marriage criteria began to weigh intelligence and education as desirable attributes in a wife, right along with physical attractiveness. Though many of the texts written for women during the Tokugawa period only pertained to how a woman could become a successful wife and household manager, there were those that undertook the challenge of learning to read, and also tackled philosophical and literary classics. Nearly all women of the samurai class were literate by the end of the Tokugawa period.
In what period did Japanese women begin being more educated?
A: Tokugawa

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
As a member of the European Union, Estonia is considered a high-income economy by the World Bank. The GDP (PPP) per capita of the country, a good indicator of wealth, was in 2015 $28,781 according to the IMF, between that of Slovak Republic and Lithuania, but below that of other long-time EU members such as Italy or Spain. The country is ranked 8th in the 2015 Index of Economic Freedom, and the 4th freest economy in Europe. Because of its rapid growth, Estonia has often been described as a Baltic Tiger beside Lithuania and Latvia. Beginning 1 January 2011, Estonia adopted the euro and became the 17th eurozone member state.
Where is Estonia ranked in the 2015 Index of Economic Freedom?
A: 8th

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In general relativity, a vanishing stress-energy tensor implies, through Einstein field equations, the vanishing of all the components of the Ricci tensor. Vacuum does not mean that the curvature of space-time is necessarily flat: the gravitational field can still produce curvature in a vacuum in the form of tidal forces and gravitational waves (technically, these phenomena are the components of the Weyl tensor). The black hole (with zero electric charge) is an elegant example of a region completely "filled" with vacuum, but still showing a strong curvature.
What kind of electric charge does a vanishing stress-energy tensor have?
A:
unanswerable