Problem: When Ibn Sina was 22 years old, he lost his father. The Samanid dynasty came to its end in December 1004. Ibn Sina seems to have declined the offers of Mahmud of Ghazni, and proceeded westwards to Urgench in modern Turkmenistan, where the vizier, regarded as a friend of scholars, gave him a small monthly stipend. The pay was small, however, so Ibn Sina wandered from place to place through the districts of Nishapur and Merv to the borders of Khorasan, seeking an opening for his talents. Qabus, the generous ruler of Tabaristan, himself a poet and a scholar, with whom Ibn Sina had expected to find asylum, was on about that date (1012) starved to death by his troops who had revolted. Ibn Sina himself was at this time stricken by a severe illness. Finally, at Gorgan, near the Caspian Sea, Ibn Sina met with a friend, who bought a dwelling near his own house in which Ibn Sina lectured on logic and astronomy. Several of Ibn Sina's treatises were written for this patron; and the commencement of his Canon of Medicine also dates from his stay in Hyrcania.
Who invited Ibn Sina to travel wesward?
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Answer: unanswerable

Problem: In Canada, the largest Presbyterian denomination and indeed the largest Protestant denomination was the Presbyterian Church in Canada, formed in 1875 with the merger of four regional groups. In 1925, the United Church of Canada was formed by the majority of Presbyterians combining with the Methodist Church, Canada, and the Congregational Union of Canada. A sizable minority of Canadian Presbyterians, primarily in southern Ontario but also throughout the entire nation, withdrew, and reconstituted themselves as a non-concurring continuing Presbyterian body. They regained use of the original name in 1939.
What is the largest Presbyterian church denomination in Canada?
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Answer: Presbyterian Church in Canada

Problem: The median household income in Boston was $51,739, while the median income for a family was $61,035. Full-time year-round male workers had a median income of $52,544 versus $46,540 for full-time year-round female workers. The per capita income for the city was $33,158. 21.4% of the population and 16.0% of families are below the poverty line. Of the total population, 28.8% of those under the age of 18 and 20.4% of those 65 and older were living below the poverty line.
What percent of families fall below the poverty line?
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Answer:
16.0%