Problem: In a time when royals were expected to marry fellow royals, it was unusual that Albert had a great deal of freedom in choosing a prospective wife. An infatuation with the already-married Australian socialite Sheila, Lady Loughborough, came to an end in April 1920 when the King, with the promise of the dukedom of York, persuaded Albert to stop seeing her. That year, he met for the first time since childhood Lady Elizabeth Bowes-Lyon, the youngest daughter of the Earl and Countess of Strathmore and Kinghorne. He became determined to marry her. She rejected his proposal twice, in 1921 and 1922, reportedly because she was reluctant to make the sacrifices necessary to become a member of the royal family. In the words of Lady Elizabeth's mother, Albert would be "made or marred" by his choice of wife. After a protracted courtship, Elizabeth agreed to marry him.
In what year did Albert and Elizabeth marry?
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Answer: unanswerable

Problem: The Late Jurassic Archaeopteryx is well known as one of the first transitional fossils to be found, and it provided support for the theory of evolution in the late 19th century. Archaeopteryx was the first fossil to display both clearly traditional reptilian characteristics: teeth, clawed fingers, and a long, lizard-like tail, as well as wings with flight feathers similar to those of modern birds. It is not considered a direct ancestor of birds, though it is possibly closely related to the true ancestor.
What is known as one of the first transitional fossils to be found?
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Answer: Late Jurassic Archaeopteryx

Problem: Tajikistan has a population of 7,349,145 (July 2009 est.) of which 70% are under the age of 30 and 35% are between the ages of 14 and 30. Tajiks who speak Tajik (a dialect of Persian) are the main ethnic group, although there are sizable minorities of Uzbeks and Russians, whose numbers are declining due to emigration. The Pamiris of Badakhshan, a small population of Yaghnobi people, and a sizeable minority of Ismailis are all considered to belong to the larger group of Tajiks. All citizens of Tajikistan are called Tajikistanis.
Few citizens of Tajikistan are called what?
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Answer:
unanswerable