Question: On March 30, 2015, it was announced that Beyonce is a co-owner, with various other music artists, in the music streaming service Tidal. The service specialises in lossless audio and high definition music videos. Beyonce's husband Jay Z acquired the parent company of Tidal, Aspiro, in the first quarter of 2015. Including Beyonce and Jay-Z, sixteen artist stakeholders (such as Kanye West, Rihanna, Madonna, Chris Martin, Nicki Minaj and more) co-own Tidal, with the majority owning a 3% equity stake. The idea of having an all artist owned streaming service was created by those involved to adapt to the increased demand for streaming within the current music industry, and to rival other streaming services such as Spotify, which have been criticised for their low payout of royalties. "The challenge is to get everyone to respect music again, to recognize its value", stated Jay-Z on the release of Tidal.
Is there an answer to this question: When was it announced that Beyonce was a co-owner in Tidal?

Answer: March 30, 2015

Question: The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. After a year of experimentation and discussion, the Red Book CD-DA standard was published in 1980. After their commercial release in 1982, compact discs and their players were extremely popular. Despite costing up to $1,000, over 400,000 CD players were sold in the United States between 1983 and 1984. The success of the compact disc has been credited to the cooperation between Philips and Sony, who came together to agree upon and develop compatible hardware. The unified design of the compact disc allowed consumers to purchase any disc or player from any company, and allowed the CD to dominate the at-home music market unchallenged.
Is there an answer to this question: What made it possible for CDs to be played on any companies CD player?

Answer: unified design

Question: Tanzania: Dar es Salaam was the torch's only stop in Africa, on April 13. The relay began at the grand terminal of the TAZARA Railway, which was China's largest foreign aid project of the 1970s, and continued for 5 km through the old city to the Benjamin Mkapa National Stadium in Temeke, which was built with Chinese aid in 2005. The torch was lit by Vice-President Ali Mohamed Shein. About a thousand people followed the relay, waving the Olympic flag. The only noted instance of protest was Nobel Peace Prize laureate Wangari Maathai's withdrawal from the list of torchbearers, in protest against human rights abuses in Tibet.
Is there an answer to this question: Where did the route start for the torch in Dar es Salaam?

Answer: the TAZARA Railway

Question: Nanjing Library, founded in 1907, houses more than 10 million volumes of printed materials and is the third largest library in China, after the National Library in Beijing and Shanghai Library. Other libraries, such as city-owned Jinling Library and various district libraries, also provide considerable amount of information to citizens. Nanjing University Library is the second largest university libraries in China after Peking University Library, and the fifth largest nationwide, especially in the number of precious collections.
Is there an answer to this question: What is the name of the fifth largest library in China?

Answer:
Nanjing University Library