Problem: Age of Enlightenment:

More importantly, the contests were open to all, and the enforced anonymity of each submission guaranteed that neither gender nor social rank would determine the judging. Indeed, although the "vast majority" of participants belonged to the wealthier strata of society ("the liberal arts, the clergy, the judiciary, and the medical profession"), there were some cases of the popular classes submitting essays, and even winning. Similarly, a significant number of women participated and won the competitions. Of a total of 2300 prize competitions offered in France, women won 49 perhaps a small number by modern standards, but very significant in an age in which most women did not have any academic training. Indeed, the majority of the winning entries were for poetry competitions, a genre commonly stressed in women's education.

What enforced contest rule guaranteed that neither gender nor social rank would determine the judging?
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A: anonymity

Problem: Other pre-modern Chinese names for Tibet include Wusiguo (Chinese: ; pinyin: Wusiguo; cf. Tibetan dbus, U, [wy]), Wusizang (Chinese: ; pinyin: wusizang, cf. Tibetan dbus-gtsang, U-Tsang), Tubote (Chinese: ; pinyin: Tubote), and Tanggute (Chinese: ; pinyin: Tanggute, cf. Tangut). American Tibetologist Elliot Sperling has argued in favor of a recent tendency by some authors writing in Chinese to revive the term Tubote (simplified Chinese: ; traditional Chinese: ; pinyin: Tubote) for modern use in place of Xizang, on the grounds that Tubote more clearly includes the entire Tibetan plateau rather than simply the Tibet Autonomous Region.[citation needed]
Who fought to revive the term Xizang?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
To the south, the Sahara is bounded by the Sahel, a belt of dry tropical savanna with a summer rainy season that extends across Africa from east to west. The southern limit of the Sahara is indicated botanically by the southern limit of Cornulaca monacantha (a drought-tolerant member of the Chenopodiaceae), or northern limit of Cenchrus biflorus, a grass typical of the Sahel. According to climatic criteria, the southern limit of the Sahara corresponds to the 150 mm (5.9 in) isohyet of annual precipitation (this is a long-term average, since precipitation varies annually).
What is to the south of the Sahara?
A: Sahel

Context and question: The most obvious difference between the brains of mammals and other vertebrates is in terms of size. On average, a mammal has a brain roughly twice as large as that of a bird of the same body size, and ten times as large as that of a reptile of the same body size.
The biggest difference between brains of mammals and other vertebrates is what?
Answer: size.

Question: Neptune is not visible to the unaided eye and is the only planet in the Solar System found by mathematical prediction rather than by empirical observation. Unexpected changes in the orbit of Uranus led Alexis Bouvard to deduce that its orbit was subject to gravitational perturbation by an unknown planet. Neptune was subsequently observed with a telescope on 23 September 1846 by Johann Galle within a degree of the position predicted by Urbain Le Verrier. Its largest moon, Triton, was discovered shortly thereafter, though none of the planet's remaining known 14 moons were located telescopically until the 20th century. The planet's distance from Earth gives it a very small apparent size, making it challenging to study with Earth-based telescopes. Neptune was visited by Voyager 2, when it flew by the planet on 25 August 1989. The advent of Hubble Space Telescope and large ground-based telescopes with adaptive optics has recently allowed for additional detailed observations from afar.
Is there an answer to this question: Who observed neptune with a telescope in the 18th century?

Answer: unanswerable

The state holds populations of white-tailed deer, mule deer, antelope, coyotes, mountain lions, bobcats, elk, and birds such as quail, doves, cardinals, bald eagles, red-tailed hawks, and pheasants. In prairie ecosystems, American bison, greater prairie chickens, badgers, and armadillo are common, and some of the nation's largest prairie dog towns inhabit shortgrass prairie in the state's panhandle. The Cross Timbers, a region transitioning from prairie to woodlands in Central Oklahoma, harbors 351 vertebrate species. The Ouachita Mountains are home to black bear, red fox, grey fox, and river otter populations, which coexist with a total of 328 vertebrate species in southeastern Oklahoma. Also, in southeastern Oklahoma lives the American alligator.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What types of birds does Oklahoma have a lot of?
Ah, so..
quail, doves, cardinals, bald eagles, red-tailed hawks, and pheasants