The Lines of Communication were English Civil War fortifications commissioned by Parliament and built around London between 1642 and 1643 to protect the capital from attack by the Royalist armies of Charles I. In 1642 some basic fortifications were built, in the form of street barricades and small earthworks. In 1643 a major construction effort was made, to provide a comprehensive ring of fortifications around the city. Much of the work was done by volunteer labour, organized by the trained bands and the livery companies. Up to 20,000 people are thought to be involved, and the works were completed in under two months. The fortifications failed their only test when the New Model Army entered London in 1647, and they were levelled by Parliament the same year.

How many years did it take after being commissioned in 1642 before The Lines of Communication failed their only test and were leveled by Parliament.
A: 5

Arcatas age cohorts are also distorted by a large percentage of college-age students. Only 15.3% of Arcata residents are under the age of 18, while nearly a third (32.3%) fall between ages 18 and 24, and 27.8% are 25 to 44 years old. Among older age cohorts, 15.9% are 45 to 64 years old, and 8.7% were 65 years of age or older. The median age was 26 years. For every 100 females, there were 99.0 males. For every 100 females age 18 and over, there were 96.9 males.

How many more males are there than males under the age of 18, per every 100 women?
A: 2.1

In 1795, the French revolutionary army invaded the Dutch Republic and turned the nation into a satellite of France, named the Batavian Republic. Britain, which was at war with France, soon moved to occupy Dutch colonies in Asia, South Africa and the Caribbean. Under the terms of the Treaty of Amiens signed by Britain and France in 1802, the Cape Colony and the islands of the Dutch West Indies that the British had seized were returned to the Republic. Ceylon was not returned to the Dutch and was made a British Crown Colony. After the outbreak of hostilities between Britain and France again in 1803, the British retook the Cape Colony. The British also invaded and captured the island of Java in 1811. In 1806, Napoleon dissolved the Batavian Republic and established a monarchy with his brother, Louis Bonaparte, on the throne as King of the Netherlands. Louis was removed from power by Napoleon in 1810, and the country was ruled directly from France until its liberation in 1813. The following year, the independent Netherlands signed the Anglo-Dutch Treaty of 1814 with Britain. All the colonies Britain had seized were returned to the Netherlands, with the exception of the Cape Colony, Guyana and Sri Lanka.

How many colonies weren't returned to the Netherlands from the Anglo-Dutch Treaty?
A:
3