Here is a question about this article: In towns, which expanded greatly during the period, landowners turned into property developers, and rows of identical terraced houses became the norm. Even the wealthy were persuaded to live in these in town, especially if provided with a square of garden in front of the house. There was an enormous amount of building in the period, all over the English-speaking world, and the standards of construction were generally high. Where they have not been demolished, large numbers of Georgian buildings have survived two centuries or more, and they still form large parts of the core of cities such as London, Edinburgh, Dublin and Bristol.
What is the answer to this question: During the period of Georgian architecture what did landowners turn into?
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So... property developers

Here is a question about this article: The basic MP3 decoding and encoding technology is patent-free in the European Union, all patents having expired there. In the United States, the technology will be substantially patent-free on 31 December 2017 (see below). The majority of MP3 patents expired in the US between 2007 and 2015.
What is the answer to this question: Between which years did most of the MP3 patents in the US expire?
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So... 2007 and 2015

Here is a question about this article: Nigeria is divided into thirty-six states and one Federal Capital Territory, which are further sub-divided into 774 Local Government Areas (LGAs). The plethora of states, of which there were only three at independence, reflect the country's tumultuous history and the difficulties of managing such a heterogeneous national entity at all levels of government. In some contexts, the states are aggregated into six geopolitical zones: North West, North East, North Central, South East, South South, and South West.
What is the answer to this question: How many geopolitical zones do people consider the Nigerian states to be in?
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So...
six