The problem: Answer a question about this article:
In a conventional lamp, the evaporated tungsten eventually condenses on the inner surface of the glass envelope, darkening it. For bulbs that contain a vacuum, the darkening is uniform across the entire surface of the envelope. When a filling of inert gas is used, the evaporated tungsten is carried in the thermal convection currents of the gas, depositing preferentially on the uppermost part of the envelope and blackening just that portion of the envelope. An incandescent lamp that gives 93% or less of its initial light output at 75% of its rated life is regarded as unsatisfactory, when tested according to IEC Publication 60064. Light loss is due to filament evaporation and bulb blackening. Study of the problem of bulb blackening led to the discovery of the Edison effect, thermionic emission and invention of the vacuum tube.
What is the IEC guideline for an unacceptable level of light loss?
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The answer: An incandescent lamp that gives 93% or less of its initial light output at 75% of its rated life is regarded as unsatisfactory

Problem: Please answer a question about the following article about Plymouth:
Plymouth is served by Plymouth Hospitals NHS Trust and the city's NHS hospital is Derriford Hospital 4 miles (6 km) north of the city centre. The Royal Eye Infirmary is located at Derriford Hospital. South Western Ambulance Service NHS Foundation Trust operates in Plymouth and the rest of the south west; its headquarters are in Exeter.
In kilometers, how far is Derriford Hospital from the Plymouth city center?
A: 6

Question: Read this and answer the question

Season five began on January 17, 2006. It remains the highest-rated season in the show's run so far. Two of the more prominent contestants during the Hollywood round were the Brittenum twins who were later disqualified for identity theft.

Which season of American Idol stands out for having the highest ratings?
Answer: Season five

Problem: The Farmington Canal Trail is a rail trail that will eventually run continuously from downtown New Haven to Northampton, Massachusetts. The scenic trail follows the path of the historic New Haven and Northampton Company and the Farmington Canal. Currently, there is a continuous 14-mile (23 km) stretch of the trail from downtown, through Hamden and into Cheshire, making bicycle commuting between New Haven and those suburbs possible. The trail is part of the East Coast Greenway, a proposed 3,000-mile (4,800 km) bike path that would link every major city on the East Coast from Florida to Maine.
Part of the rail trail is also accessible by what form of transportation?
The answer is the following: bicycle

In the original city plan, the interstate buses should also stop at the Central Station. Because of the growth of Brasilia (and corresponding growth in the bus fleet), today the interstate buses leave from the older interstate station (called Rodoferroviaria), located at the western end of the Eixo Monumental. The Central Bus Station also contains a main metro station. A new bus station was opened in July 2010. It is on Saida Sul (South Exit) near Parkshopping Mall and with its metro station, and it's also an inter-state bus station, used only to leave the Federal District.
Where did Brasilia's plan want interstate buses to stop?
Central Station

Here is a question about this article: In the last years of the nineteenth century, Planck was investigating the problem of black-body radiation first posed by Kirchhoff some forty years earlier. It is well known that hot objects glow, and that hotter objects glow brighter than cooler ones. The electromagnetic field obeys laws of motion similarly to a mass on a spring, and can come to thermal equilibrium with hot atoms. The hot object in equilibrium with light absorbs just as much light as it emits. If the object is black, meaning it absorbs all the light that hits it, then its thermal light emission is maximized.
What is the answer to this question: How many years prior to Planck's study had the scientific community first discussed black body radiation?
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So...
forty