Problem: Tucson, Arizona:

Another popular event held in February, which is early spring in Tucson, is the Fiesta de los Vaqueros, or rodeo week, founded by winter visitor, Leighton Kramer. While at its heart the Fiesta is a sporting event, it includes what is billed as "the world's largest non-mechanized parade". The Rodeo Parade is a popular event as most schools give two rodeo days off instead of Presidents Day. The exception to this is Presidio High (a non-public charter school), which doesn't get either. Western wear is seen throughout the city as corporate dress codes are cast aside during the Fiesta. The Fiesta de los Vaqueros marks the beginning of the rodeo season in the United States.

How much time do Tucson schools give students off to attend the Fiesta de los Vaqueros?
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A: two rodeo days off


Problem: Israel:

The notion of the "Land of Israel", known in Hebrew as Eretz Yisrael, has been important and sacred to the Jewish people since Biblical times. According to the Torah, God promised the land to the three Patriarchs of the Jewish people. On the basis of scripture, the period of the three Patriarchs has been placed somewhere in the early 2nd millennium BCE, and the first Kingdom of Israel was established around the 11th century BCE. Subsequent Israelite kingdoms and states ruled intermittently over the next four hundred years, and are known from various extra-biblical sources.

What is the "Land of Israel" known as in Hebrew?
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A: Eretz Yisrael


Problem: Avicenna:

According to his autobiography, Avicenna had memorised the entire Quran by the age of 10. He learned Indian arithmetic from an Indian greengrocer,ءMahmoud Massahi and he began to learn more from a wandering scholar who gained a livelihood by curing the sick and teaching the young. He also studied Fiqh (Islamic jurisprudence) under the Sunni Hanafi scholar Ismail al-Zahid. Avicenna was taught some extent of philosophy books such as Introduction (Isagoge)'s Porphyry (philosopher), Euclid's Elements, Ptolemy's Almagest by an unpopular philosopher, Abu Abdullah Nateli, who claimed philosophizing.

What was one biology book that Avicenna was taught from?
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A: unanswerable


Problem: Race (human categorization):

In his 2003 paper, "Human Genetic Diversity: Lewontin's Fallacy", A. W. F. Edwards argued that rather than using a locus-by-locus analysis of variation to derive taxonomy, it is possible to construct a human classification system based on characteristic genetic patterns, or clusters inferred from multilocus genetic data. Geographically based human studies since have shown that such genetic clusters can be derived from analyzing of a large number of loci which can assort individuals sampled into groups analogous to traditional continental racial groups. Joanna Mountain and Neil Risch cautioned that while genetic clusters may one day be shown to correspond to phenotypic variations between groups, such assumptions were premature as the relationship between genes and complex traits remains poorly understood. However, Risch denied such limitations render the analysis useless: "Perhaps just using someone's actual birth year is not a very good way of measuring age. Does that mean we should throw it out? ... Any category you come up with is going to be imperfect, but that doesn't preclude you from using it or the fact that it has utility."

What might genetic clusters be shown to correspond to one day?
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A:
phenotypic variations between groups