Problem: David Archuleta's performance of John Lennon's "Imagine" was considered by many as one of the best of the season. Jennifer Lopez, who was brought in as a judge in season ten, called it a beautiful song-moment that she will never forget. Jason Castro's semi-final performance of "Hallelujah" also received considerable attention, and it propelled Jeff Buckley's version of the song to the top of the Billboard digital song chart. This was the first season in which contestants' recordings were released onto iTunes after their performances, and although sales information was not released so as not to prejudice the contest, leaked information indicated that contestants' songs frequently reached the top of iTunes sales charts.
For the first time, recordings of the contestant's songs could be purchased where?
The answer is the following: iTunes

Problem: It was announced on 19 March 2015 that self-governance for the island would be revoked by the Commonwealth and replaced by a local council with the state of New South Wales providing services to the island. A reason given was that the island had never gained self-sufficiency and was being heavily subsidised by the Commonwealth, by $12.5 million in 2015 alone. It meant that residents would have to start paying Australian income tax, but they would also be covered by Australian welfare schemes such as Centrelink and Medicare.
What would Norfolk Island residents have to start paying as a result of the new council?
The answer is the following: Australian income tax

Problem: After a lackluster arrival to Oklahoma City for the 2008–09 season, the Oklahoma City Thunder secured a berth (8th) in the 2010 NBA Playoffs the next year after boasting its first 50-win season, winning two games in the first round against the Los Angeles Lakers. In 2012, Oklahoma City made it to the NBA Finals, but lost to the Miami Heat in five games. In 2013 the Thunder reached the Western Conference semifinals without All-Star guard Russell Westbrook, who was injured in their first round series against the Houston Rockets, only to lose to the Memphis Grizzlies. In 2014 Oklahoma City again reached the NBA's Western Conference Finals but eventually lost to the San Antonio Spurs in six games.
Who did the Thunder lose to in the Western Conference finals?
The answer is the following: San Antonio Spurs

Problem: The 1950s and early 1960s are considered by many to be a golden age of Greek cinema. Directors and actors of this era were recognized as important historical figures in Greece and some gained international acclaim: Irene Papas, Melina Mercouri, Mihalis Kakogiannis, Alekos Sakellarios, Nikos Tsiforos, Iakovos Kambanelis, Katina Paxinou, Nikos Koundouros, Ellie Lambeti, and others. More than sixty films per year were made, with the majority having film noir elements. Notable films were Η κάλπικη λίρα (1955 directed by Giorgos Tzavellas), Πικρό Ψωμί (1951, directed by Grigoris Grigoriou), O Drakos (1956 directed by Nikos Koundouros), Stella (1955 directed by Cacoyannis and written by Kampanellis).
Which time period is considered the golden age of Greek cinema? 
The answer is the following:
1950s and early 1960s