[Q]: The Cuban Embassy in Washington, DC, is the diplomatic mission of Cuba to the United States of America. It is located at 2630 16th Street Northwest, Washington, D.C., in the Adams Morgan neighborhood. The building was originally constructed in 1917 as the Cuban embassy, and served in that capacity until the United States severed relations with Cuba in 1961. A neighborhood some distance away from the Adams Morgan neighborhood was originally sought to be the site for the embassy.
[A]: It's impossible to say

[Q]: Pietro Ferrero (2 September 1898 2 March 1949) was the founder of Ferrero SpA, an Italian confectionery and chocolatier company. His company invented Nutella, a hazelnut-cream spread, which is now sold in over 160 countries. The famous Ferrero Rochers are also made by his company, Ferrero, as were Tic-Tacs and various Kinder chocolates. Ferrero lived in Italy.
[A]: It's impossible to say

[Q]: Die Antwoord (] , Afrikaans for "The Answer") is a South African hip hop group formed in Cape Town in 2008. It comprises rappers Ninja and Yolandi Visser and producer God (formerly DJ Hi-Tek). Their image revolves around the South African counterculture movement known as zef and has incorporated work by other artists associated with the movement, such as photographer Roger Ballen. Die Antwoord is a South African hip hop group formed in Cape Town in 2006
[A]: No

[Q]: The Oakland County Child Killer (OCCK) is an unidentified serial killer responsible for the murders of four or more children, two girls and two boys, in Oakland County, Michigan, United States in 1976 and 1977. Several theories and suspects have been named in the case, but despite all these theories, the cases remain unsolved and the killer(s) have never been identified. The Oakland County Child Killer murdered children.
[A]:
Yes