Problem: Boardwalk Hall, formally known as the "Historic Atlantic City Convention Hall", is an arena in Atlantic City along the boardwalk. Boardwalk Hall was Atlantic City's primary convention center until the opening of the Atlantic City Convention Center in 1997. The Atlantic City Convention Center includes 500,000 sq ft (46,000 m2) of showroom space, 5 exhibit halls, 45 meeting rooms with 109,000 sq ft (10,100 m2) of space, a garage with 1,400 parking spaces, and an adjacent Sheraton hotel. Both the Boardwalk Hall and Convention Center are operated by the Atlantic City Convention & Visitors Authority.
How many sq ft of showroom space is included in the Atlantic City Convention Center?
The answer is the following: 500,000 sq ft

Problem: Antonio Vivaldi composed a mandolin concerto (Concerto in C major Op.3 6) and two concertos for two mandolins and orchestra. Wolfgang Amadeus Mozart placed it in his 1787 work Don Giovanni and Beethoven created four variations of it. Antonio Maria Bononcini composed La conquista delle Spagne di Scipione Africano il giovane in 1707 and George Frideric Handel composed Alexander Balus in 1748. Others include Giovani Battista Gervasio (Sonata in D major for Mandolin and Basso Continuo), Giuseppe Giuliano (Sonata in D major for Mandolin and Basso Continuo), Emanuele Barbella (Sonata in D major for Mandolin and Basso Continuo), Domenico Scarlatti (Sonata n.54 (K.89) in D minor for Mandolin and Basso Continuo), and Addiego Guerra (Sonata in G major for Mandolin and Basso Continuo).
Who composed the Concerto in C Major Op 3 6?
The answer is the following: Antonio Vivaldi

Problem: The US ended World War I with two 3-inch AA guns and improvements were developed throughout the inter-war period. However, in 1924 work started on a new 105 mm static mounting AA gun, but only a few were produced by the mid-1930s because by this time work had started on the 90 mm AA gun, with mobile carriages and static mountings able to engage air, sea and ground targets. The M1 version was approved in 1940. During the 1920s there was some work on a 4.7-inch which lapsed, but revived in 1937, leading to a new gun in 1944.
What year was the M1 version approved?
The answer is the following: 1940

Problem: As the capital of Uruguay, Montevideo is home to a number of festivals and carnivals including a Gaucho festival when people ride through the streets on horseback in traditional gaucho gear. The major annual festival is the annual Montevideo Carnaval which is part of the national festival of Carnival Week, celebrated throughout Uruguay, with central activities in the capital, Montevideo. Officially, the public holiday lasts for two days on Carnival Monday and Shrove Tuesday preceding Ash Wednesday, but due to the prominence of the festival, most shops and businesses close for the entire week. During carnival there are many open-air stage performances and competitions and the streets and houses are vibrantly decorated. "Tablados" or popular scenes, both fixed and movable, are erected in the whole city. Notable displays include "Desfile de las Llamadas" ("Parade of the Calls"), which is a grand united parade held on the south part of downtown, where it used to be a common ritual back in the early 20th century. Due to the scale of the festival, preparation begins as early as December with an election of the "zonal beauty queens" to appear in the carnival.
What does Desfile de las Llamadas mean?
The answer is the following:
Parade of the Calls