Problem: The Blitz:

While Knickebein was used by German crews en masse, X-Gerät use was limited to specially trained pathfinder crews. Special receivers were mounted in He 111s, with a radio mast on the bomber's fuselage. The system worked on a higher frequency (66–77 MHz, compared to Knickebein's 30–33 MHz). Transmitters on the ground sent pulses at a rate of 180 per minute. X-Gerät received and analysed the pulses, giving the pilot both visual and aural "on course" signals. Three beams intersected the beam along the He 111's flight path. The first cross-beam acted as a warning for the bomb-aimer to start the bombing-clock which he would activate only when the second cross-beam was reached. When the third cross-beam was reached the bomb aimer activated a third trigger, which stopped the first hand of the equipment's clock, with the second hand continuing. When the second hand re-aligned with the first, the bombs were released. The clock's timing mechanism was co-ordinated with the distances of the intersecting beams from the target so the target was directly below when the bomb release occurred.

What mechanism cause the bombs to be released?
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A: clock's timing


Problem: Egypt also hosts an unknown number of refugees and asylum seekers, estimated to be between 500,000 and 3 million. There are some 70,000 Palestinian refugees, and about 150,000 recently arrived Iraqi refugees, but the number of the largest group, the Sudanese, is contested.[nb 1] The once-vibrant and ancient Greek and Jewish communities in Egypt have almost disappeared, with only a small number remaining in the country, but many Egyptian Jews visit on religious or other occasions and tourism. Several important Jewish archaeological and historical sites are found in Cairo, Alexandria and other cities.
Approximately how many rufugees and asylum seekers are in Egypt?
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Answer: between 500,000 and 3 million


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Encompassing a wide variety of post-Romantic styles composed through the year 2000, 20th century classical music includes late romantic, modern, high-modern, and postmodern styles of composition. Modernism (1890–1930) marked an era when many composers rejected certain values of the common practice period, such as traditional tonality, melody, instrumentation, and structure. The high-modern era saw the emergence of neo-classical and serial music. A few authorities have claimed high-modernism as the beginning of postmodern music from about 1930. Others have more or less equated postmodern music with the "contemporary music" composed from the late 20th century through to the early 21st century.
When did modernism take place?
A: 1890–1930


Context and question: Like other digital music players, iPods can serve as external data storage devices. Storage capacity varies by model, ranging from 2 GB for the iPod Shuffle to 128 GB for the iPod Touch (previously 160 GB for the iPod Classic, which is now discontinued).
What is the smallest data capacity for an iPod product?
Answer: 2 GB


Question: Cyprus has one of the warmest climates in the Mediterranean part of the European Union.[citation needed] The average annual temperature on the coast is around 24 °C (75 °F) during the day and 14 °C (57 °F) at night. Generally, summers last about eight months, beginning in April with average temperatures of 21–23 °C (70–73 °F) during the day and 11–13 °C (52–55 °F) at night, and ending in November with average temperatures of 22–23 °C (72–73 °F) during the day and 12–14 °C (54–57 °F) at night, although in the remaining four months temperatures sometimes exceed 20 °C (68 °F).
Is there an answer to this question: What month typically marks the end of summer on Cyprus?

Answer: November


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Since the introduction of league football, most club sides play a number of friendlies before the start of each season (called pre-season friendlies). Friendly football matches are considered to be non-competitive and are only used to "warm up" players for a new season/competitive match. There is generally nothing competitive at stake and some rules may be changed or experimented with (such as unlimited substitutions, which allow teams to play younger, less experienced, players, and no cards). Although most friendlies are simply one-off matches arranged by the clubs themselves, in which a certain amount is paid by the challenger club to the incumbent club, some teams do compete in short tournaments, such as the Emirates Cup, Teresa Herrera Trophy and the Amsterdam Tournament. Although these events may involve sponsorship deals and the awarding of a trophy and may even be broadcast on television, there is little prestige attached to them.
It when went to football clubs not play Friendly's?
A:
unanswerable