Problem: Tristan da Cunha:

In 1958 as part of an experiment, Operation Argus, the United States Navy detonated an atomic bomb 160 kilometres (100 mi) high in the upper atmosphere about 175 kilometres (109 mi) southeast of the main island.

During which mission did the US Army detonate an atomic bomb?
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A: unanswerable

Problem: To Kill a Mockingbird:

In 2006, Lee was awarded an honorary doctorate from the University of Notre Dame. During the ceremony, the students and audience gave Lee a standing ovation, and the entire graduating class held up copies of To Kill a Mockingbird to honor her.[note 5] Lee was awarded the Presidential Medal of Freedom on November 5, 2007 by President George W. Bush. In his remarks, Bush stated, "One reason To Kill a Mockingbird succeeded is the wise and kind heart of the author, which comes through on every page ... To Kill a Mockingbird has influenced the character of our country for the better. It's been a gift to the entire world. As a model of good writing and humane sensibility, this book will be read and studied forever."

When did Lee receive a Presidential Medal of Freedom?
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A: 2007

Problem: Republic of the Congo:

In the early 1980s, rapidly rising oil revenues enabled the government to finance large-scale development projects with GDP growth averaging 5% annually, one of the highest rates in Africa. The government has mortgaged a substantial portion of its petroleum earnings, contributing to a shortage of revenues. January 12, 1994 devaluation of Franc Zone currencies by 50% resulted in inflation of 46% in 1994, but inflation has subsided since.

What was the Congo's annual increase in gross domestic product in the early '80s?
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A: 5%

Problem: Education:

Similarities in systems or even in ideas that schools share internationally have led to an increase in international student exchanges. The European Socrates-Erasmus Program facilitates exchanges across European universities. The Soros Foundation provides many opportunities for students from central Asia and eastern Europe. Programs such as the International Baccalaureate have contributed to the internationalization of education. The global campus online, led by American universities, allows free access to class materials and lecture files recorded during the actual classes.

What has come from differences in systems?
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A:
unanswerable