Problem: United States dollar:

The colloquialism "buck"(s) (much like the British word "quid"(s, pl) for the pound sterling) is often used to refer to dollars of various nations, including the U.S. dollar. This term, dating to the 18th century, may have originated with the colonial leather trade. It may also have originated from a poker term. "Greenback" is another nickname originally applied specifically to the 19th century Demand Note dollars created by Abraham Lincoln to finance the costs of the Civil War for the North. The original note was printed in black and green on the back side. It is still used to refer to the U.S. dollar (but not to the dollars of other countries). Other well-known names of the dollar as a whole in denominations include "greenmail", "green" and "dead presidents" (the last because deceased presidents are pictured on most bills).

What color other than green was used on the backside of the original note?
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A: black

Problem: Webcomics are comics that are available on the internet. They are able to reach large audiences, and new readers usually can access archived installments. Webcomics can make use of an infinite canvasmeaning they are not constrained by size or dimensions of a page.
With webcomics, readers have no access to what?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Republic of Liberia, beginning as a settlement of the American Colonization Society (ACS), declared its independence on July 26, 1847. The United States did not recognize Liberia's independence until during the American Civil War on February 5, 1862. Between January 7, 1822 and the American Civil War, more than 15,000 freed and free-born Black Americans from United States and 3,198 Afro-Caribbeans relocated to the settlement. The Black American settlers carried their culture with them to Liberia. The Liberian constitution and flag were modeled after the United States. In January 3, 1848 Joseph Jenkins Roberts, a wealthy free-born Black American from Virginia who settled in Liberia, was elected as Liberia's first president after the people proclaimed independence.
What country did Liberia gain independence from?
A: unanswerable

Context and question: In 1358, the Sakya viceregal regime installed by the Mongols in Tibet was overthrown in a rebellion by the Phagmodru myriarch Tai Situ Changchub Gyaltsen (13021364). The Mongol Yuan court was forced to accept him as the new viceroy, and Changchub Gyaltsen and his successors, the Phagmodrupa Dynasty, gained de facto rule over Tibet.
Which dynasty became ruler of Tibet?
Answer: the Phagmodrupa Dynasty

Question: Increasing urbanisation of India in 7th and 6th centuries BCE led to the rise of new ascetic or shramana movements which challenged the orthodoxy of rituals. Mahavira (c. 549477 BC), proponent of Jainism, and Buddha (c. 563-483), founder of Buddhism were the most prominent icons of this movement. Shramana gave rise to the concept of the cycle of birth and death, the concept of samsara, and the concept of liberation. Buddha found a Middle Way that ameliorated the extreme asceticism found in the Sramana religions.
Is there an answer to this question: What prominent icon founded Buddhism?

Answer: Buddha

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Adolf Hitler failed to pay as much attention to bombing the enemy as he did to protection from enemy bombing, although he had promoted the development of a bomber force in the 1930s and understood that it was possible to use bombers for major strategic purposes. He told the OKL in 1939 that ruthless employment of the Luftwaffe against the heart of the British will to resist could and would follow when the moment was right; however, he quickly developed a lively scepticism toward strategic bombing, confirmed by the results of the Blitz. He frequently complained of the Luftwaffe's inability to damage industries sufficiently, saying, "The munitions industry cannot be interfered with effectively by air raids ... usually the prescribed targets are not hit".
Why did Hitler feel the Luftwaffe was unsuccessful in bombing raids?
A:
prescribed targets are not hit