Problem: Annelid:

Accounts of the use of leeches for the medically dubious practise of blood-letting have come from China around 30 AD, India around 200 AD, ancient Rome around 50 AD and later throughout Europe. In the 19th century medical demand for leeches was so high that some areas' stocks were exhausted and other regions imposed restrictions or bans on exports, and Hirudo medicinalis is treated as an endangered species by both IUCN and CITES. More recently leeches have been used to assist in microsurgery, and their saliva has provided anti-inflammatory compounds and several important anticoagulants, one of which also prevents tumors from spreading.

When did leeches begin being used for blood-letting?
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A: 30 AD

Problem: The Russian Revolution is the series of revolutions in Russia in 1917, which destroyed the Tsarist autocracy and led to the creation of the Soviet Union. Following the abdication of Nicholas II of Russia, the Russian Provisional Government was established. In October 1917, a red faction revolution occurred in which the Red Guard, armed groups of workers and deserting soldiers directed by the Bolshevik Party, seized control of Saint Petersburg (then known as Petrograd) and began an immediate armed takeover of cities and villages throughout the former Russian Empire.
What happened during the red faction revolution?
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Answer: armed groups of workers and deserting soldiers directed by the Bolshevik Party, seized control of Saint Petersburg

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
According to Italian fashion designer Roberto Cavalli, Beyonce uses different fashion styles to work with her music while performing. Her mother co-wrote a book, published in 2002, titled Destiny's Style an account of how fashion had an impact on the trio's success. The B'Day Anthology Video Album showed many instances of fashion-oriented footage, depicting classic to contemporary wardrobe styles. In 2007, Beyonce was featured on the cover of the Sports Illustrated Swimsuit Issue, becoming the second African American woman after Tyra Banks, and People magazine recognized Beyonce as the best-dressed celebrity.
Which parent of Beyonce's help co-write a book?
A: Her mother

Context and question: In spite of their flaws, such as the lack of portability, records still have enthusiastic supporters. Vinyl records continue to be manufactured and sold today, especially by independent rock bands and labels, although record sales are considered to be a niche market composed of audiophiles, collectors, and DJs. Old records and out-of-print recordings in particular are in much demand by collectors the world over. (See Record collecting.) Many popular new albums are given releases on vinyl records and older albums are also given reissues, sometimes on audiophile-grade vinyl.
Are records generally out of print as of date?
Answer: Vinyl records continue to be manufactured and sold today

Question: The Arthashastra and the Edicts of Ashoka are the primary written records of the Mauryan times. Archaeologically, this period falls into the era of Northern Black Polished Ware (NBPW). The Mauryan Empire was based on a modern and efficient economy and society. However, the sale of merchandise was closely regulated by the government. Although there was no banking in the Mauryan society, usury was customary. A significant amount of written records on slavery are found, suggesting a prevalence thereof. During this period, a high quality steel called Wootz steel was developed in south India and was later exported to China and Arabia.
Is there an answer to this question: What organization closely monitored business dealings in the Mauryan Empire?

Answer: government

Copper's greater conductivity versus other metals enhances the electrical energy efficiency of motors. This is important because motors and motor-driven systems account for 43%-46% of all global electricity consumption and 69% of all electricity used by industry. Increasing the mass and cross section of copper in a coil increases the electrical energy efficiency of the motor. Copper motor rotors, a new technology designed for motor applications where energy savings are prime design objectives, are enabling general-purpose induction motors to meet and exceed National Electrical Manufacturers Association (NEMA) premium efficiency standards.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What percentage of electrical consumption does motor systems use globally?
Ah, so..
43%-46%