Problem: No definite relation exists between the annual rings of growth and the amount of sapwood. Within the same species the cross-sectional area of the sapwood is very roughly proportional to the size of the crown of the tree. If the rings are narrow, more of them are required than where they are wide. As the tree gets larger, the sapwood must necessarily become thinner or increase materially in volume. Sapwood is thicker in the upper portion of the trunk of a tree than near the base, because the age and the diameter of the upper sections are less.
Are more rings necessary if they're narrow or wide?
The answer is the following: narrow

Problem: The town was the subject of an attempt by a separate company, the Didcot, Newbury and Southampton Railway, to open another rail route to the North in the 1880s and some building work, including a surviving embankment, was undertaken in the Hill Lane area.
What feature survives in the Hill Lane area as evidence of the Didcot, Newbury and Southampton Railway's work?
The answer is the following: embankment

Problem: In India, the Supreme Court of India was created on January 28, 1950 after adoption of the Constitution. Article 141 of the Constitution of India states that the law declared by Supreme Court is to be binding on all Courts within the territory of India. It is the highest court in India and has ultimate judicial authority to interpret the Constitution and decide questions of national law (including local bylaws). The Supreme Court is also vested with the power of judicial review to ensure the application of the rule of law.
India's Supreme Court has ultimate power to determine interpretations of what?
The answer is the following: the Constitution

Problem: Autumn, winter, and early spring are frequently characterized by rain. Winters are cool and wet with December, the coolest month, averaging 40.6 °F (4.8 °C), with 28 annual days with lows that reach the freezing mark, and 2.0 days where the temperature stays at or below freezing all day; the temperature rarely lowers to 20 °F (−7 °C). Summers are sunny, dry and warm, with August, the warmest month, averaging 66.1 °F (18.9 °C), and with temperatures reaching 90 °F (32 °C) on 3.1 days per year, although 2011 is the most recent year to not reach 90 °F. The hottest officially recorded temperature was 103 °F (39 °C) on July 29, 2009; the coldest recorded temperature was 0 °F (−18 °C) on January 31, 1950; the record cold daily maximum is 16 °F (−9 °C) on January 14, 1950, while, conversely, the record warm daily minimum is 71 °F (22 °C) the day the official record high was set. The average window for freezing temperatures is November 16 thru March 10, allowing a growing season of 250 days.
What is Seattle's average December temperature? 
The answer is the following:
40.6 °F