Question: Both Roger Williams and John Clarke, his compatriot and coworker for religious freedom, are variously credited as founding the earliest Baptist church in North America. In 1639, Williams established a Baptist church in Providence, Rhode Island, and Clarke began a Baptist church in Newport, Rhode Island. According to a Baptist historian who has researched the matter extensively, "There is much debate over the centuries as to whether the Providence or Newport church deserved the place of 'first' Baptist congregation in America. Exact records for both congregations are lacking."
Is there an answer to this question: Where did John Clarke establish an Anabaptist church?

Answer: unanswerable

Question: Early research into circadian rhythms suggested that most people preferred a day closer to 25 hours when isolated from external stimuli like daylight and timekeeping. However, this research was faulty because it failed to shield the participants from artificial light. Although subjects were shielded from time cues (like clocks) and daylight, the researchers were not aware of the phase-delaying effects of indoor electric lights.[dubious discuss] The subjects were allowed to turn on light when they were awake and to turn it off when they wanted to sleep. Electric light in the evening delayed their circadian phase.[citation needed] A more stringent study conducted in 1999 by Harvard University estimated the natural human rhythm to be closer to 24 hours, 11 minutes: much closer to the solar day but still not perfectly in sync.
Is there an answer to this question: When did testing determine peple preferred a 25 hour day?

Answer: unanswerable

Question: The majority of video compression algorithms use lossy compression. Uncompressed video requires a very high data rate. Although lossless video compression codecs perform at a compression factor of 5-12, a typical MPEG-4 lossy compression video has a compression factor between 20 and 200. As in all lossy compression, there is a trade-off between video quality, cost of processing the compression and decompression, and system requirements. Highly compressed video may present visible or distracting artifacts.
Is there an answer to this question: What is there a tradeoff between in artifacts?

Answer: unanswerable

Question: Following Anwar Sadat's ascension to the Egyptian presidency, Libya's relations with Egypt deteriorated. Sadat was perturbed by Gaddafi's unpredictability and insistence that Egypt required a cultural revolution. In February 1973, Israeli forces shot down Libyan Arab Airlines Flight 114, which had strayed from Egyptian airspace into Israeli-held territory during a sandstorm. Gaddafi was infuriated that Egypt had not done more to prevent the incident, and in retaliation planned to destroy the RMS Queen Elizabeth 2, a British ship chartered by American Jews to sail to Haifa for Israel's 25th anniversary. Gaddafi ordered an Egyptian submarine to target the ship, but Sadat cancelled the order, fearing a military escalation.
Is there an answer to this question: What city was the destination of RMS Queen Elizabeth 2?

Answer:
Haifa