The problem: Answer a question about this article:
The initial near-complete MPEG-1 standard (parts 1, 2 and 3) was publicly available on 6 December 1991 as ISO CD 11172. In most countries, patents cannot be filed after prior art has been made public, and patents expire 20 years after the initial filing date, which can be up to 12 months later for filings in other countries. As a result, patents required to implement MP3 expired in most countries by December 2012, 21 years after the publication of ISO CD 11172.
When can patents not be filed in most countries?
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The answer: after prior art has been made public


The problem: Answer a question about this article:
In 1579 the northern seven provinces signed the Union of Utrecht, in which they decided to join forces against Spanish rule. The Union of Utrecht is seen as the beginning of the Dutch Republic. In 1580 the new and predominantly Protestant state abolished the bishoprics, including the archbishopric of Utrecht. The stadtholders disapproved of the independent course of the Utrecht bourgeoisie and brought the city under much more direct control of the republic; which shifted the power towards its dominant province Holland. This was the start of a long period of stagnation of trade and development in Utrecht. Utrecht remained an atypical city in the new republic with about 40% Catholic in the mid-17th century, and even more among the elite groups, who included many rural nobility and gentry with town houses there.
What is this union seen as 
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The answer: The Union of Utrecht is seen as the beginning of the Dutch Republic


The problem: Answer a question about this article:
The Swazi bicameral Parliament or Libandla consists of the Senate (30 seats; 10 members appointed by the House of Assembly and 20 appointed by the monarch; to serve five-year terms) and the House of Assembly (65 seats; 10 members appointed by the monarch and 55 elected by popular vote; to serve five-year terms). The elections are held every five years after dissolution of parliament by the king. The last elections were held on 20 September 2013. The balloting is done on a non-party basis in all categories. All election procedures are overseen by the elections and boundaries commission.
How many members are there in the Swazi House of Assembly?
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The answer: 65


The problem: Answer a question about this article:
While most artists became established in other formats before moving to adult contemporary, Michael Bublé and Josh Groban started out as AC artists. Throughout this decade, artists such as Nick Lachey, James Blunt, John Mayer, Bruno Mars, Jason Mraz, Kelly Clarkson, Adele, Clay Aiken and Susan Boyle have become successful thanks to a ballad heavy sound. Much as some hot AC and modern rock artists have crossed over into each other, so too has soft AC crossed with country music in this decade. Country musicians such as Faith Hill, Shania Twain, LeAnn Rimes and Carrie Underwood have had success on both charts.
Along with Josh Groban, what notable pop artist started out his career on adult contemporary radio?
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The answer:
Michael Bublé