Problem: Bird migration:

The primary motivation for migration appears to be food; for example, some hummingbirds choose not to migrate if fed through the winter. Also, the longer days of the northern summer provide extended time for breeding birds to feed their young. This helps diurnal birds to produce larger clutches than related non-migratory species that remain in the tropics. As the days shorten in autumn, the birds return to warmer regions where the available food supply varies little with the season.

Which birds will not migrate if they are well fed through winter?
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A: hummingbirds

Problem: Alsace:

By the time of the Protestant Reformation in the 16th century, Strasbourg was a prosperous community, and its inhabitants accepted Protestantism in 1523. Martin Bucer was a prominent Protestant reformer in the region. His efforts were countered by the Roman Catholic Habsburgs who tried to eradicate heresy in Upper Alsace. As a result, Alsace was transformed into a mosaic of Catholic and Protestant territories. On the other hand, Mompelgard (Montbeliard) to the southwest of Alsace, belonging to the Counts of Wurttemberg since 1397, remained a Protestant enclave in France until 1793.

What were the names given for the two groups that heavily dominated Alsace during this time?
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A: Catholic and Protestant

Problem: Comprehensive school:

Education in Northern Ireland differs slightly from systems used elsewhere in the United Kingdom, but it is more similar to that used in England and Wales than it is to Scotland.

Which countries have school systems somewhat similar to Northern England?
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A: unanswerable

Problem: Clothing:

Clothing can and has in history been made from a very wide variety of materials. Materials have ranged from leather and furs, to woven materials, to elaborate and exotic natural and synthetic fabrics. Not all body coverings are regarded as clothing. Articles carried rather than worn (such as purses), worn on a single part of the body and easily removed (scarves), worn purely for adornment (jewelry), or those that serve a function other than protection (eyeglasses), are normally considered accessories rather than clothing, as are footwear and hats.

What are footwear and hats both considered?
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A:
accessories