Problem: Red:

But, like many colors, it also had a negative association, with heat, destruction and evil. A prayer to god Isis said: "Oh Isis, protect me from all things evil and red." The ancient Egyptians began manufacturing pigments in about 4000 BC. Red ochre was widely used as a pigment for wall paintings, particularly as the skin color of men. An ivory painter's palette found inside the tomb of King Tutankhamun had small compartments with pigments of red ochre and five other colors. The Egyptians used the root of the rubia, or madder plant, to make a dye, later known as alizarin, and also used it to color white power to use as a pigment, which became known as madder lake, alizarin or alizarin crimson.

Who used the white alizarin to make crimson pigment?
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A: unanswerable

Problem: Candidates for Freemasonry will have met most active members of the Lodge they are joining before they are initiated. The process varies between jurisdictions, but the candidate will typically have been introduced by a friend at a Lodge social function, or at some form of open evening in the Lodge. In modern times, interested people often track down a local Lodge through the Internet. The onus is on candidates to ask to join; while candidates may be encouraged to ask, they are never invited. Once the initial inquiry is made, an interview usually follows to determine the candidate's suitability. If the candidate decides to proceed from here, the Lodge ballots on the application before he (or she, depending on the Masonic Jurisdiction) can be accepted.
How can you find a lodge to ask to be a member of?
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Answer: track down a local Lodge through the Internet

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Numerous communities of dark-skinned peoples are present in North Africa, some dating from prehistoric communities. Others are descendants of the historical Trans-Saharan trade in peoples and/or, and after the Arab invasions of North Africa in the 7th century, descendants of slaves from the Arab Slave Trade in North Africa.
When were the Arab Invasions?
A: the 7th century

Context and question: The concept of a group arose from the study of polynomial equations, starting with Evariste Galois in the 1830s. After contributions from other fields such as number theory and geometry, the group notion was generalized and firmly established around 1870. Modern group theoryan active mathematical disciplinestudies groups in their own right.a["] To explore groups, mathematicians have devised various notions to break groups into smaller, better-understandable pieces, such as subgroups, quotient groups and simple groups. In addition to their abstract properties, group theorists also study the different ways in which a group can be expressed concretely (its group representations), both from a theoretical and a computational point of view. A theory has been developed for finite groups, which culminated with the classification of finite simple groups announced in 1983.aa["] Since the mid-1980s, geometric group theory, which studies finitely generated groups as geometric objects, has become a particularly active area in group theory.
When did the geometric group theory become less active?
Answer: unanswerable

Question: The term "bacteria" was traditionally applied to all microscopic, single-cell prokaryotes. However, molecular systematics showed prokaryotic life to consist of two separate domains, originally called Eubacteria and Archaebacteria, but now called Bacteria and Archaea that evolved independently from an ancient common ancestor. The archaea and eukaryotes are more closely related to each other than either is to the bacteria. These two domains, along with Eukarya, are the basis of the three-domain system, which is currently the most widely used classification system in microbiolology. However, due to the relatively recent introduction of molecular systematics and a rapid increase in the number of genome sequences that are available, bacterial classification remains a changing and expanding field. For example, a few biologists argue that the Archaea and Eukaryotes evolved from Gram-positive bacteria.
Is there an answer to this question: What are two main groups of prokaryotic organisms are divided into?

Answer: Eubacteria and Archaebacteria

Problem: Political philosophy:

Islamic political philosophy, was, indeed, rooted in the very sources of Islami.e., the Qur'an and the Sunnah, the words and practices of Muhammadthus making it essentially theocratic. However, in the Western thought, it is generally supposed that it was a specific area peculiar merely to the great philosophers of Islam: al-Kindi (Alkindus), al-Farabi (Abunaser), Ibn Sina (Avicenna), Ibn Bajjah (Avempace), Ibn Rushd (Averroes), and Ibn Khaldun. The political conceptions of Islam such as kudrah (power), sultan, ummah, cemaa (obligation)-and even the "core" terms of the Qur'ani.e., ibadah (worship), din (religion), rab (master) and ilah (deity)is taken as the basis of an analysis. Hence, not only the ideas of the Muslim political philosophers but also many other jurists and ulama posed political ideas and theories. For example, the ideas of the Khawarij in the very early years of Islamic history on Khilafa and Ummah, or that of Shia Islam on the concept of Imamah are considered proofs of political thought. The clashes between the Ehl-i Sunna and Shia in the 7th and 8th centuries had a genuine political character.

What do the ideas of general political character give proof of in early Islamic history?
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A:
unanswerable