Question: Q1.)Who has majority ownership of an Icelandic-based airline WOW air, headquarted in Reykajavik and is based at the Keflavik International Airport?  A1.)Skúli Mogensen
Context: Líder Aviação (Líder Aviation) is a Brazilian airline specialising in air charter, aircraft sales and aircraft maintenance.  Its main base is in Belo Horizonte, Minas Gerais, where it has a presence at both airports.  It has other bases throughout Brazil; at Congonhas Airport and Guarulhos International Airport in São Paulo, Santos Dumont Airport, Jacarepaguá Airport and Galeão International Airport in Rio de Janeiro, Brasília International Airport, Recife's Guararapes International Airport, Macaé Airport, Val de Cães International Airport in Belém, Vitória Airport, Salvador International Airport, Porto Alegre's Salgado Filho International Airport, and Eduardo Gomes International Airport in Manaus.  Bristow Group, a large U.S. based helicopter operator with worldwide operations supporting the offshore oil and gas industry, has a financial stake in Lider. Iceland Express was a low-fare airline headquartered in Reykjavík, Iceland, that is now operated by WOW air.  It operated services to several destinations in Europe using wet-leased aircraft.  Its main base was Keflavík International Airport. Champion Air was an airline based in Bloomington, Minnesota, USA.  It operated general charter services to sports teams, vacation wholesalers and government agencies.  It also offered limited scheduled service.  Its main base was Minneapolis-Saint Paul International Airport, with hubs at Denver International Airport, Dallas-Fort Worth International Airport, Detroit Metropolitan Wayne County Airport, McCarran International Airport in Las Vegas, Lambert-St.  Louis International Airport, and Will Rogers World Airport in Oklahoma City.  The airline ceased all operations on May 31, 2008.  Until its shutdown, the airline was a prime contractor for the Justice Prisoner and Alien Transportation System. WOW air is an Icelandic low-cost carrier that is headquartered in Reykjavík and based at Keflavík International Airport. Gullbringusýsla was a county of Iceland, located in the Southern Peninsula region.  Its cities were Hafnarfjörður, Reykjanesbær, Garður, Sandgerði, Vogar and Grindavík.  Internationally known places within the county include Keflavik international airport and the Blue Lagoon. Air Wisconsin Airlines is a regional airline based at Appleton International Airport in the town of Greenville, Wisconsin, United States, near Appleton.  Air Wisconsin is the largest privately held regional airline in the United States.  It currently operates regional jet flights as American Eagle under contract to American Airlines via a code sharing agreement, serving cities in the U.S. and Canada with hubs at Boston Logan International Airport (BOS), Charlotte Douglas International Airport (CLT), Philadelphia International Airport (PHL) and Ronald Reagan Washington National Airport (DCA) .  Air Wisconsin previously operated United Express service on behalf of United Airlines followed by US Airways Express service on behalf of US Airways prior to becoming an American Eagle regional air carrier.  The company has announced it will once again partner with United Airlines as a United Express code sharing air carrier with primary hubs to be located at Chicago O'Hare International Airport (ORD) and Washington Dulles International Airport (IAD) beginning in September 2017 and will be "exclusively operating" as United Express by March 2018. Keilir – Atlantic Centre of Excellence (Icelandic: "Keilir, miðstöð vísinda, fræða og atvinnulífs") is a private, non-profit, international educational institution located in Ásbrú next to Keflavik International Airport in the city of Reykjanesbaer in Iceland.  The school was established in 2007. Egilsstaðir Airport (IATA: EGS, ICAO: BIEG) is a single-runway international airport in Egilsstaðir, Iceland.  The main carrier is Air Iceland with flights to Reykjavík.  The airport has several car rental options available, such as Europcar and Sixt.  Egilsstaðir also handles the occasional WOW air flight, operated by an A320. Skúli Mogensen is an Icelandic financial investor with a majority ownership of Icelandic-based airline WOW air. Naval Air Station Keflavik (NASKEF) is a former U.S. Navy base at Keflavík International Airport, Iceland.  It is located on the Reykjanes peninsula on the south-west portion of the island.  Built during World War II by the United States Army as part of its mission to maintain the defense of Iceland and secure northern Atlantic air routes, it served to ferry personnel, equipment, and supplies to Europe.  Intended as a temporary wartime base under an agreement with Iceland and the British, US forces withdrew by 1947, but returned in 1951 as the Iceland Defense Force, now operating a NATO base.  NASKEF was closed on 8 September 2006 and its facilities taken over by the Icelandic Defence Agency as their primary base until 1 January 2011 when the Agency was abolished.  The base is currently used by the Icelandic Coast Guard.
Answer: Skúli Mogensen