Question: During the Middle Ages, Thuringia was situated at the border between Germanic and Slavic territories, marked by the Saale river. The Ostsiedlung movement led to the assimilation of Slavic people between the 11th and the 13th century under German rule. The population growth increased during the 18th century and stayed high until World War I, before it slowed within the 20th century and changed to a decline since 1990. Since the beginning of Urbanisation around 1840, the Thuringian cities have higher growth rates resp. smaller rates of decline than rural areas (many villages lost half of their population since 1950, whereas the biggest cities (Erfurt and Jena) keep growing).
Is there an answer to this question: What was the fake result of the Ostsiedlung movement?

Answer: unanswerable

Question: Population has outstripped the supply of freshwater, usually from rainfall. The northern atolls get 50 inches (1,300 mm) of rainfall annually; the southern atolls about twice that. The threat of drought is commonplace throughout the island chains.
Is there an answer to this question: How much more rain do the southern atolls get compared to the northern?

Answer: twice

Question: In December 2006, Robert "Evel" Knievel sued West for trademark infringement in West's video for "Touch the Sky". Knievel took issue with a "sexually charged video" in which West takes on the persona of "Evel Kanyevel" and attempts flying a rocket over a canyon. The suit claimed infringement on Knievel's trademarked name and likeness. Knievel also claimed that the "vulgar and offensive" images depicted in the video damaged his reputation. The suit sought monetary damages and an injunction to stop distribution of the video. West's attorneys argued that the music video amounted to satire and therefore was covered under the First Amendment. Just days before his death in November 2007, Knievel amicably settled the suit after being paid a visit from West, saying, "I thought he was a wonderful guy and quite a gentleman."
Is there an answer to this question: What famous stuntman sued Kanye for purported use of his likeness in 2006?

Answer: Robert "Evel" Knievel

Question: Vaccines rely on immune modulation or augmentation. Vaccination either excites or reinforces the immune competence of a host to ward off infection, leading to the activation of macrophages, the production of antibodies, inflammation, and other classic immune reactions. Antibacterial vaccines have been responsible for a drastic reduction in global bacterial diseases. Vaccines made from attenuated whole cells or lysates have been replaced largely by less reactogenic, cell-free vaccines consisting of purified components, including capsular polysaccharides and their conjugates, to protein carriers, as well as inactivated toxins (toxoids) and proteins.
Is there an answer to this question: What do polysaccharides need to work?

Answer:
unanswerable