The problem: Answer a question about this article:
In Ukraine, Lviv and Kiev celebrated Ukrainian Independence Day on January 22, 1989. Thousands gathered in Lviv for an unauthorized moleben (religious service) in front of St. George's Cathedral. In Kiev, 60 activists met in a Kiev apartment to commemorate the proclamation of the Ukrainian People's Republic in 1918. On February 1112, 1989, the Ukrainian Language Society held its founding congress. On February 15, 1989, the formation of the Initiative Committee for the Renewal of the Ukrainian Autocephalous Orthodox Church was announced. The program and statutes of the movement were proposed by the Writers Association of Ukraine and were published in the journal Literaturna Ukraina on February 16, 1989. The organization heralded Ukrainian dissidents such as Vyacheslav Chornovil.
What is commemorated on January 22 in Ukraine?
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The answer: Ukrainian Independence Day

Problem: Please answer a question about the following article about Gramophone record:
In January 1938, Milt Gabler started recording for his new label, Commodore Records, and to allow for longer continuous performances, he recorded some 12-inch records. Eddie Condon explained: "Gabler realized that a jam session needs room for development." The first two 12-inch recordings did not take advantage of the extra length: "Carnegie Drag" was 3:15; "Carnegie Jump", 2:41. But at the second session, on April 30, the two 12-inch recordings were longer: "Embraceable You" was 4:05; "Serenade to a Shylock", 4:32. Another way around the time limitation was to issue a selection on both sides of a single record. Vaudeville stars Gallagher and Shean recorded "Mr. Gallagher and Mr. Shean", written by Irving and Jack Kaufman, as two sides of a 10-inch 78 in 1922 for Cameo. An obvious workaround for longer recordings was to release a set of records. An early multi-record release was in 1903, when HMV in England made the first complete recording of an opera, Verdi's Ernani, on 40 single-sided discs. In 1940, Commodore released Eddie Condon and his Band's recording of "A Good Man Is Hard to Find" in four parts, issued on both sides of two 12-inch 78s. This limitation on the duration of recordings persisted from 1910 until the invention of the LP record, in 1948. In popular music, this time limitation of about 3:30 on a 10-inch 78 rpm record meant that singers usually did not release long pieces on record. One exception is Frank Sinatra's recording of Rodgers and Hammerstein's "Soliloquy", from Carousel, made on May 28, 1946. Because it ran 7:57, longer than both sides of a standard 78 rpm 10-inch record, it was released on Columbia's Masterwork label (the classical division) as two sides of a 12-inch record. The same was true of John Raitt's performance of the song on the original cast album of Carousel, which had been issued on a 78-rpm album set by American Decca in 1945.
On which label did Frank Sinatra release his recording of Soliloquy?
A: Columbia's Masterwork label

Question: Read this and answer the question

In addition, LaserDisc videos sometimes exhibit a problem known as "crosstalk". The issue can arise when the laser optical pickup assembly within the player is out of alignment or because the disc is damaged or excessively warped, but it could also occur even with a properly functioning player and a factory-new disc, depending on electrical and mechanical alignment problems. In these instances, the issue arose due to the fact that CLV discs require subtle changes in rotating speed at various points during playback. During a change in speed, the optical pickup inside the player might read video information from a track adjacent to the intended one, causing data from the two tracks to "cross"; the extra video information picked up from that second track shows up as distortion in the picture which looks reminiscent of swirling "barber poles" or rolling lines of static.

What problem can be caused by a player becoming out of alignment?
Answer: "crosstalk"

Problem: Writing to a friend in May 1795, Burke surveyed the causes of discontent: "I think I can hardly overrate the malignity of the principles of Protestant ascendency, as they affect Ireland; or of Indianism [i.e. corporate tyranny, as practiced by the British East Indies Company], as they affect these countries, and as they affect Asia; or of Jacobinism, as they affect all Europe, and the state of human society itself. The last is the greatest evil". By March 1796, however Burke had changed his mind: "Our Government and our Laws are beset by two different Enemies, which are sapping its foundations, Indianism, and Jacobinism. In some Cases they act separately, in some they act in conjunction: But of this I am sure; that the first is the worst by far, and the hardest to deal with; and for this amongst other reasons, that it weakens discredits, and ruins that force, which ought to be employed with the greatest Credit and Energy against the other; and that it furnishes Jacobinism with its strongest arms against all formal Government".
Whose ascendancy did Burke think was malignant?
The answer is the following: Protestant

The Chief Justice presides in the Senate during a president's impeachment trial. The rules of the Senate, however, generally do not grant much authority to the presiding officer. Thus, the Chief Justice's role in this regard is a limited one.
Who presides over an impeachment trial?
The Chief Justice

Here is a question about this article: Samba Schools are large, social entities with thousands of members and a theme for their song and parade each year. In Rio Carnival, samba schoolsparade in the Sambadrome ("sambodromo" in Portuguese). Some of the most famous include GRES Estacao Primeira de Mangueira, GRES Portela, GRES Imperatriz Leopoldinense, GRES Beija-Flor de Nilopolis, GRES Mocidade Independente de Padre Miguel, and recently, Unidos da Tijuca and GRES Uniao da Ilha do Governador. Local tourists pay $500950, depending on the costume, to buy a Samba costume and dance in the parade. Blocos are small informal groups with a definite theme in their samba, usually satirizing the political situation. About 30 schools in Rio gather hundreds of thousands of participants. More than 440 blocos operate in Rio. Bandas are samba musical bands, also called "street carnival bands", usually formed within a single neighborhood or musical back-ground. The Carnival industry chain amassed in 2012 almost US$1 billion in revenues.
What is the answer to this question: About how many Samba schools are in Rio?
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So...
30