The problem: Answer a question about this article:
There are more than 900 million Protestants worldwide,[ad] among approximately 2.4 billion Christians.[ae] In 2010, a total of more than 800 million included 300 million in Sub-Saharan Africa, 260 million in the Americas, 140 million in Asia-Pacific region, 100 million in Europe and 2 million in Middle East-North Africa. Protestants account for nearly forty percent of Christians worldwide and more than one tenth of the total human population. Various estimates put the percentage of Protestants in relation to the total number of world's Christians at 33%, 36%, 36.7%, and 40%, while in relation to the world's population at 11.6% and 13%.
What is the total population of Christians in the world?
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The answer: approximately 2.4 billion

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For maximum life, capacitors usually need to be able to handle the maximum amount of reversal that a system will experience. An AC circuit will experience 100% voltage reversal, while under-damped DC circuits will experience less than 100%. Reversal creates excess electric fields in the dielectric, causes excess heating of both the dielectric and the conductors, and can dramatically shorten the life expectancy of the capacitor. Reversal ratings will often affect the design considerations for the capacitor, from the choice of dielectric materials and voltage ratings to the types of internal connections used.
What percentage of voltage reversal does an AC circuit experience?
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The answer: 100% voltage reversal

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As of 2000[update], there were 59,948 people who were single and never married in the municipality. There were 49,873 married individuals, 9,345 widows or widowers and 9,468 individuals who are divorced.
How many people were married in Bern in 2000?
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The answer: 49,873

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The rebel barons responded by inviting the French prince Louis to lead them: Louis had a claim to the English throne by virtue of his marriage to Blanche of Castile, a granddaughter of Henry II. Philip may have provided him with private support but refused to openly support Louis, who was excommunicated by Innocent for taking part in the war against John. Louis' planned arrival in England presented a significant problem for John, as the prince would bring with him naval vessels and siege engines essential to the rebel cause. Once John contained Alexander in Scotland, he marched south to deal with the challenge of the coming invasion.
Who was Henry II's granddaughter?
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The answer:
Blanche of Castile