Problem: Black people:

In the US, African Americans, who include multiracial people, earn 75% of what white people earn. In Brazil, people of color earn less than 50% of what whites earn. Some have posited that the facts of lower socioeconomic status for people of color suggest that Brazil practices a kind of one-drop rule, or discrimination against people who are not visibly European in ancestry. The gap in income between blacks and other non-whites is relatively small compared to the large gap between whites and all people of color. Other social factors, such as illiteracy and education levels, show the same patterns of disadvantage for people of color. Some commentators observe that the United States practice of segregation and white supremacy in the South, and discrimination in many areas outside that region, forced many African Americans to unite in the civil rights struggle. They suggest that the fluid nature of race in Brazil has divided individuals of African descent, between those with more or less ancestry. As a result, they have not united for a stronger civil rights movement.[citation needed]

In the US, how much of what white people earn, do blacks earn?
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A: 75%


Problem: In 1353 Bern joined the Swiss Confederacy, becoming one of the eight cantons of the formative period of 1353 to 1481. Bern invaded and conquered Aargau in 1415 and Vaud in 1536, as well as other smaller territories; thereby becoming the largest city-state north of the Alps, by the 18th century comprising most of what is today the canton of Bern and the canton of Vaud.
What is the largest city-state north of the Alps?
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Answer: Bern


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Protocol on Environmental Protection to the Antarctic Treaty (also known as the Environmental Protocol or Madrid Protocol) came into force in 1998, and is the main instrument concerned with conservation and management of biodiversity in Antarctica. The Antarctic Treaty Consultative Meeting is advised on environmental and conservation issues in Antarctica by the Committee for Environmental Protection. A major concern within this committee is the risk to Antarctica from unintentional introduction of non-native species from outside the region.
When did the Environmental Protocol become effective?
A: 1998


Context and question: However, several de facto standards for tag formats exist. As of 2010, the most widespread are ID3v1 and ID3v2, and the more recently introduced APEv2. These tags are normally embedded at the beginning or end of MP3 files, separate from the actual MP3 frame data. MP3 decoders either extract information from the tags, or just treat them as ignorable, non-MP3 junk data.
What is the most recently introduced standard for tag formatting?
Answer: APEv2


Question: Tajikistan has a population of 7,349,145 (July 2009 est.) of which 70% are under the age of 30 and 35% are between the ages of 14 and 30. Tajiks who speak Tajik (a dialect of Persian) are the main ethnic group, although there are sizable minorities of Uzbeks and Russians, whose numbers are declining due to emigration. The Pamiris of Badakhshan, a small population of Yaghnobi people, and a sizeable minority of Ismailis are all considered to belong to the larger group of Tajiks. All citizens of Tajikistan are called Tajikistanis.
Is there an answer to this question: Seventy percent of Tajikistan's population is over what age?

Answer: unanswerable


Arthur Schopenhauer (1788-1860) wrote that "...materialism is the philosophy of the subject who forgets to take account of himself". He claimed that an observing subject can only know material objects through the mediation of the brain and its particular organization. That is, the brain itself is the "determiner" of how material objects will be experienced or perceived:
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What does it mean for the brain to be a non-determiner? 
Ah, so..
unanswerable