Question: The tradition of presenting the trophy immediately after the game did not start until the 1882 final; after the first final in 1872 the trophy was not presented to the winners, Wanderers, until a reception held four weeks later in the Pall Mall Restaurant in London. Under the original rules, the trophy was to be permanently presented to any club which won the competition three times, although when inaugural winners Wanderers achieved this feat by the 1876 final, the rules were changed by FA Secretary CW Alcock (who was also captain of Wanderers in their first victory).
Try to answer this question if possible: Did that ever happen?
Answer: inaugural winners Wanderers achieved this feat by the 1876 final
Question: Swiss are fans of football and the national team is nicknamed the 'Nati'. The headquarters of the sport's governing body, the International Federation of Association Football (FIFA), is located in Zurich. Switzerland hosted the 1954 FIFA World Cup, and was the joint host, with Austria, of the Euro 2008 tournament. The Swiss Super League is the nation's professional club league. For the Brasil 2014 World Cup finals tournament, the country's German-speaking cantons will be closely monitored by local police forces to prevent celebrations beyond one hour after matches end. Europe's highest football pitch, at 2,000 metres (6,600 ft) above sea level, is located in Switzerland and is named the Ottmar Hitzfeld Stadium.
Try to answer this question if possible: Which FIFA world cup did Switzerland host?
Answer: 1954
Question: Eric P. Hamp in his 2012 Indo-European family tree, groups the Armenian language along with Greek and Ancient Macedonian ("Helleno-Macedonian") in the Pontic Indo-European (also called Helleno-Armenian) subgroup. In Hamp's view the homeland of this subgroup is the northeast coast of the Black Sea and its hinterlands. He assumes that they migrated from there southeast through the Caucasus with the Armenians remaining after Batumi while the pre-Greeks proceeded westwards along the southern coast of the Black Sea.
Try to answer this question if possible: In what year did Caucasus develop his Indo-Eurpoean family tree?
Answer: unanswerable
Question: A railway electrification system supplies electric power to railway trains and trams without an on-board prime mover or local fuel supply. Electrification has many advantages but requires significant capital expenditure. Selection of an electrification system is based on economics of energy supply, maintenance, and capital cost compared to the revenue obtained for freight and passenger traffic. Different systems are used for urban and intercity areas; some electric locomotives can switch to different supply voltages to allow flexibility in operation.
Try to answer this question if possible: How do some locomotives function in order to be more flexible in operation?
Answer:
can switch to different supply voltages