Problem: On 16 March 2011, the freighter MS Oliva ran aground on Nightingale Island, spilling tons of heavy fuel oil into the ocean, leaving an oil slick threatening the island's population of rockhopper penguins. Nightingale Island has no fresh water, so the penguins were transported to Tristan da Cunha for cleaning.
where were the penguins transported for cleaning?
The answer is the following: Tristan da Cunha

Problem: Guinea-Bissau is a republic. In the past, the government had been highly centralized. Multi-party governance was not established until mid-1991. The president is the head of state and the prime minister is the head of government. Since 1974, no president has successfully served a full five-year term.
Who is the head of state?
The answer is the following: president

Problem: The Lutherans were the first Protestant Church offering a dialogue to the Catholic Church in September 1964 in Reykjavík, Iceland. It resulted in joint study groups of several issues. The dialogue with the Methodist Church began October 1965, after its representatives officially applauded remarkable changes, friendship and cooperation of the past five years. The Reformed Churches entered four years later into a dialogue with the Catholic Church. The President of the Lutheran World Federation and member of the central committee of the World Council of Churches Fredrik A. Schiotz stated during the 450th anniversary of the Reformation, that earlier commemorations were viewed almost as a triumph. Reformation should be celebrated as a thanksgiving to God, his truth and his renewed life. He welcomed the announcement of Pope Paul VI to celebrate the 1900th anniversary of the death of the Apostle Peter and Apostle Paul, and promised the participation and cooperation in the festivities.
In what year did the Catholic church begin diplomatic relations with the Lutheran church?
The answer is the following: 1964

Problem: Calvin Veltman undertook, for the National Center for Education Statistics and for the Hispanic Policy Development Project, the most complete study of English language adoption by Hispanophone immigrants. Mr Veltman's language shift studies document high bilingualism rates and subsequent adoption of English as the preferred language of Hispanics, particularly by the young and the native-born. The complete set of these studies' demographic projections postulates the near-complete assimilation of a given Hispanophone immigrant cohort within two generations. Although his study based itself upon a large 1976 sample from the Bureau of the Census (which has not been repeated), data from the 1990 Census tend to confirm the great Anglicization of the US Hispanic American origin population.
What is Calvin Veltman' study about?
The answer is the following:
the most complete study of English language adoption by Hispanophone immigrants