Problem: New Haven, Connecticut:

In 2004, the first bike lane in the city was added to Orange Street, connecting East Rock Park and the East Rock neighborhood to downtown. Since then, bike lanes have also been added to sections of Howard Ave, Elm St, Dixwell Avenue, Water Street, Clinton Avenue and State Street. The city has created recommended bike routes for getting around New Haven, including use of the Canal Trail and the Orange Street lane. A bike map of the city entire can be seen here , and bike maps broken down by area here . As of the end of 2012, bicycle lanes have also been added in both directions on Dixwell Avenue along most of the street from downtown to the Hamden town line, as well as along Howard Avenue from Yale New Haven Hospital to City Point.

When was the first bicycle lane created in New Haven?
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A: 2004

Problem: Portugal:

Typical fast food dishes include the Francesinha (Frenchie) from Porto, and bifanas (grilled pork) or prego (grilled beef) sandwiches, which are well known around the country. The Portuguese art of pastry has its origins in the many medieval Catholic monasteries spread widely across the country. These monasteries, using very few ingredients (mostly almonds, flour, eggs and some liquor), managed to create a spectacular wide range of different pastries, of which pasteis de Belem (or pasteis de nata) originally from Lisbon, and ovos moles from Aveiro are examples. Portuguese cuisine is very diverse, with different regions having their own traditional dishes. The Portuguese have a culture of good food, and throughout the country there are myriads of good restaurants and typical small tasquinhas.

Where does the Portuguese art of pastry have its origins?
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A: in the many medieval Catholic monasteries spread widely across the country

Problem: States of Germany:

The use of the term Lander (Lands) dates back to the Weimar Constitution of 1919. Before this time, the constituent states of the German Empire were called Staaten (States). Today, it is very common to use the term Bundesland (Federal Land). However, this term is not used officially, neither by the constitution of 1919 nor by the Basic Law (Constitution) of 1949. Three Lander call themselves Freistaaten (Free States, which is the old-fashioned German expression for Republic), Bavaria (since 1919), Saxony (originally since 1919 and again since 1990), and Thuringia (since 1994). There is little continuity between the current states and their predecessors of the Weimar Republic with the exception of the three free states, and the two city-states of Hamburg and Bremen.

How many free states are there in Germany?
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A: three

Problem: Railway electrification system:

Disadvantages of electric traction include high capital costs that may be uneconomic on lightly trafficked routes; a relative lack of flexibility since electric trains need electrified tracks or onboard supercapacitors and charging infrastructure at stations; and a vulnerability to power interruptions. Different regions may use different supply voltages and frequencies, complicating through service. The limited clearances available under catenaries may preclude efficient double-stack container service. The lethal voltages on contact wires and third rails are a safety hazard to track workers, passengers and trespassers. Overhead wires are safer than third rails, but they are often considered unsightly.

Lethal voltages on contact wires and third rails are non a safety hazard for whom?
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A:
unanswerable