Question: In the U.S., for example, copyright case law contains a substantial similarity requirement to determine whether the work was copied. Likewise, courts may require computer software to pass an Abstraction-Filtration-Comparison test (AFC Test) to determine if it is too abstract to qualify for protection, or too dissimilar to an original work to be considered infringing. Software-related case law has also clarified that the amount of R&D, effort and expense put into a work's creation doesn't affect copyright protection.
Is there an answer to this question: Which country needs a similarity requirement to determine if the work was copied?

Answer: U.S.

Question: The first season of American Idol debuted as a summer replacement show in June 2002 on the Fox network. It was co-hosted by Ryan Seacrest and Brian Dunkleman.
Is there an answer to this question: What network aired the first season of American Idol?

Answer: Fox

Question: The Tito-Stalin split had large ramifications for countries outside the USSR and Yugoslavia. It has, for example, been given as one of the reasons for the Slansky trial in Czechoslovakia, in which 14 high-level Communist officials were purged, with 11 of them being executed. Stalin put pressure on Czechoslovakia to conduct purges in order to discourage the spread of the idea of a "national path to socialism," which Tito espoused.
Is there an answer to this question: Who espoused the "national path to socialism"?

Answer: Tito

Question: In the 1960 election to choose his successor, Eisenhower endorsed his own Vice President, Republican Richard Nixon against Democrat John F. Kennedy. He told friends, "I will do almost anything to avoid turning my chair and country over to Kennedy." He actively campaigned for Nixon in the final days, although he may have done Nixon some harm. When asked by reporters at the end of a televised press conference to list one of Nixon's policy ideas he had adopted, Eisenhower joked, "If you give me a week, I might think of one. I don't remember." Kennedy's campaign used the quote in one of its campaign commercials. Nixon narrowly lost to Kennedy. Eisenhower, who was the oldest president in history at that time (then 70), was succeeded by the youngest elected president, as Kennedy was 43.
Is there an answer to this question: Who was the Democratic candidate for president in 1960?

Answer:
John F. Kennedy