The problem: Answer a question about this article:
In 1911 arsphenamine, the first synthetic anti-infective drug, was developed by Paul Ehrlich and chemist Alfred Bertheim of the Institute of Experimental Therapy in Berlin. The drug was given the commercial name Salvarsan. Ehrlich, noting both the general toxicity of arsenic and the selective absorption of certain dyes by bacteria, hypothesized that an arsenic-containing dye with similar selective absorption properties could be used to treat bacterial infections. Arsphenamine was prepared as part of a campaign to synthesize a series of such compounds, and found to exhibit partially selective toxicity. Arsphenamine proved to be the first effective treatment for syphilis, a disease which prior to that time was incurable and led inexorably to severe skin ulceration, neurological damage, and death.[citation needed]
What complications are associated with Syphilis?
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The answer: severe skin ulceration, neurological damage, and death

Problem: Please answer a question about the following article about Szlachta:
On 3 May 1505 King Alexander I Jagiellon granted the Act of "Nihil novi nisi commune consensu" (Latin: "I accept nothing new except by common consent"). This forbade the king to pass any new law without the consent of the representatives of the nobility, in Sejm and Senat assembled, and thus greatly strengthened the nobility's political position. Basically, this act transferred legislative power from the king to the Sejm. This date commonly marks the beginning of the First Rzeczpospolita, the period of a szlachta-run "Commonwealth".
What did The Act of "Nihil novi nisi commune consensu" Do
A: forbade the king to pass any new law without the consent of the representatives of the nobility

Question: Read this and answer the question

With the gradual weakening of the Marathas in the aftermath of the three Anglo-Maratha wars, the British also secured the Ganges-Jumna Doab, the Delhi-Agra region, parts of Bundelkhand, Broach, some districts of Gujarat, the fort of Ahmmadnagar, province of Cuttack (which included Mughalbandi/the coastal part of Odisha, Garjat/the princely states of Odisha, Balasore Port, parts of Midnapore district of West Bengal), Bombay (Mumbai) and the surrounding areas, leading to a formal end of the Maratha empire and firm establishment of the British East India Company in India.

how many Anglo Maratha wars were there?
Answer: three

Problem: An error sometimes made is the confusion of discussion regarding Greece's Eurozone entry with the controversy regarding usage of derivatives' deals with U.S. Banks by Greece and other Eurozone countries to artificially reduce their reported budget deficits. A currency swap arranged with Goldman Sachs allowed Greece to "hide" 2.8 billion Euros of debt, however, this affected deficit values after 2001 (when Greece had already been admitted into the Eurozone) and is not related to Greece's Eurozone entry.
Why aren't the deficit values affected by the currency swap with Goldman Sachs relevant to Greece's Eurozone entry?
The answer is the following: affected deficit values after 2001

Portugal has several summer music festivals, such as Festival Sudoeste in Zambujeira do Mar, Festival de Paredes de Coura in Paredes de Coura, Festival Vilar de Mouros near Caminha, Boom Festival in Idanha-a-Nova Municipality, Optimus Alive!, Sumol Summer Fest in Ericeira, Rock in Rio Lisboa and Super Bock Super Rock in Greater Lisbon. Out of the summer season, Portugal has a large number of festivals, designed more to an urban audience, like Flowfest or Hip Hop Porto. Furthermore, one of the largest international Goa trance festivals takes place in central Portugal every two years, the Boom Festival, that is also the only festival in Portugal to win international awards: European Festival Award 2010 Green'n'Clean Festival of the Year and the Greener Festival Award Outstanding 2008 and 2010. There is also the student festivals of Queima das Fitas are major events in a number of cities across Portugal. In 2005, Portugal held the MTV Europe Music Awards, in Pavilhao Atlantico, Lisbon.
What are a couple examples of Summer music festivals held in Portugal?
Festival Sudoeste in Zambujeira do Mar, Festival de Paredes de Coura in Paredes de Coura, Festival Vilar de Mouros near Caminha,

Here is a question about this article: Central Tucson is bicycle-friendly. To the east of the University of Arizona, Third Street is bike-only except for local traffic and passes by the historic homes of the Sam Hughes neighborhood. To the west, E. University Boulevard leads to the Fourth Avenue Shopping District. To the North, N. Mountain Avenue has a full bike-only lane for half of the 3.5 miles (5.6 km) to the Rillito River Park bike and walk multi-use path. To the south, N. Highland Avenue leads to the Barraza-Aviation Parkway bicycle path.
What is the answer to this question: How long does N Mountain Ave have a bike lane?
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So...
half of the 3.5 miles (5.6 km) to the Rillito River Park