Article: Palermo has at least 2 circuits of City Walls - many pieces of which still survive. The first circuit surrounded the ancient core of the punic City - the so-called Palaeopolis (in the area east of Porta Nuova) and the Neopolis. Via Vittorio Emanuele was the main road east-west through this early walled city. The eastern edge of the walled city was on Via Roma and the ancient port in the vicinity of Piazza Marina. The wall circuit was approximately Porto Nuovo, Corso Alberti, Piazza Peranni, Via Isodoro, Via Candela, Via Venezia, Via Roma, Piazza Paninni, Via Biscottari, Via Del Bastione, Palazzo dei Normanni and back to Porto Nuovo.

Question: On what road was the eastern edge of the walled city?
Ans: Via Roma


Article: Geneva and the nearby French department of Ain co-host the world's largest laboratory, CERN, dedicated to particle physics research. Another important research center is the Paul Scherrer Institute. Notable inventions include lysergic acid diethylamide (LSD), the scanning tunneling microscope (Nobel prize) and Velcro. Some technologies enabled the exploration of new worlds such as the pressurized balloon of Auguste Piccard and the Bathyscaphe which permitted Jacques Piccard to reach the deepest point of the world's oceans.

Question: Who co-hosts CERN along with the French department of Ain?
Ans: Geneva


Article: Estonia was a member of the League of Nations from 22 September 1921, has been a member of the United Nations since 17 September 1991, and of NATO since 29 March 2004, as well as the European Union since 1 May 2004. Estonia is also a member of the Organization for Security and Cooperation in Europe (OSCE), Organisation for Economic Co-operation and Development (OECD), Council of the Baltic Sea States (CBSS) and the Nordic Investment Bank (NIB). As an OSCE participating State, Estonia's international commitments are subject to monitoring under the mandate of the U.S. Helsinki Commission. Estonia has also signed the Kyoto Protocol.

Question: What date did Estonia join the European Union?
Ans: 1 May 2004


Article: 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.

Question: How many volumes does the Nanjing Library have?
Ans:
more than 10 million volumes