The problem: Answer a question about this article:
Most ingested uranium is excreted during digestion. Only 0.5% is absorbed when insoluble forms of uranium, such as its oxide, are ingested, whereas absorption of the more soluble uranyl ion can be up to 5%. However, soluble uranium compounds tend to quickly pass through the body, whereas insoluble uranium compounds, especially when inhaled by way of dust into the lungs, pose a more serious exposure hazard. After entering the bloodstream, the absorbed uranium tends to bioaccumulate and stay for many years in bone tissue because of uranium's affinity for phosphates. Uranium is not absorbed through the skin, and alpha particles released by uranium cannot penetrate the skin.
What does uranium have an affinity for?
****
The answer: phosphates

The problem: Answer a question about this article:
Around 3.8 million people work in Switzerland; about 25% of employees belonged to a trade union in 2004. Switzerland has a more flexible job market than neighbouring countries and the unemployment rate is very low. The unemployment rate increased from a low of 1.7% in June 2000 to a peak of 4.4% in December 2009. The unemployment rate is 3.2% in 2014. Population growth from net immigration is quite high, at 0.52% of population in 2004. The foreign citizen population was 21.8% in 2004, about the same as in Australia. GDP per hour worked is the world's 16th highest, at 49.46 international dollars in 2012.
What was the foreign citizen population percentage in Switzerland in 2014?
****
The answer: 21.8%

The problem: Answer a question about this article:
On October 9, 2006 at 6:00 a.m., the network switched to a 24-hour schedule, becoming one of the last major English-language broadcasters to transition to such a schedule. Most CBC-owned stations previously signed off the air during the early morning hours (typically from 1:00 a.m. to 6:00 a.m.). Instead of the infomercials aired by most private stations, or a simulcast of CBC News Network in the style of BBC One's nightly simulcast of BBC News Channel, the CBC uses the time to air repeats, including local news, primetime series, movies and other programming from the CBC library. Its French counterpart, Ici Radio-Canada Tele, still signs off every night.
Was CBC one of the first or last stations to adopt a 24 hour schedule?
****
The answer: last

The problem: Answer a question about this article:
In the years following the dissolution of Yugoslavia, some historians stated that human rights were suppressed in Yugoslavia under Tito, particularly in the first decade up until the Tito-Stalin split. On 4 October 2011, the Slovenian Constitutional Court found a 2009 naming of a street in Ljubljana after Tito to be unconstitutional. While several public areas in Slovenia (named during the Yugoslav period) do already bear Tito's name, on the issue of renaming an additional street the court ruled that:
Under which ruler do historians argue human rights were suppressed in Yugoslavia?
****
The answer:
Tito