Question: In 2009 Tajikistan had 26 airports, 18 of which had paved runways, of which two had runways longer than 3,000 meters. The country's main airport is Dushanbe International Airport which as of April 2015, had regularly scheduled flights to major cities in Russia, Central Asia, as well as Delhi, Dubai, Frankfurt, Istanbul, Kabul, Tehran, and Urumqi amongst others. There are also international flights, mainly to Russia, from Khujand Airport in the northern part of the country as well as limited international services from Kulob Airport, and Qurghonteppa International Airport. Khorog Airport is a domestic airport and also the only airport in the sparsely populated eastern half of the country.
Is there an answer to this question: What is the country's main airport?

Answer: Dushanbe International Airport

Question: Oxidation of hydrogen removes its electron and gives H+, which contains no electrons and a nucleus which is usually composed of one proton. That is why H+ is often called a proton. This species is central to discussion of acids. Under the Bronsted-Lowry theory, acids are proton donors, while bases are proton acceptors.
Is there an answer to this question: What theory suggests that acids are proton donors?

Answer: Bronsted-Lowry

Question: Paper is a thin material produced by pressing together moist fibres of cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets. It is a versatile material with many uses, including writing, printing, packaging, cleaning, and a number of industrial and construction processes.
Is there an answer to this question: From what type of fibers are rags made?

Answer: unanswerable

Question: Two days later, it was announced that Luis Enrique would return to Barcelona as head coach, after he agreed to a two-year deal. He was recommended by sporting director Andoni Zubizarreta, his former national teammate. Following Enrique's arrival, Barcelona broke their transfer record when they paid Liverpool F.C. between 81 to 94 million for striker Luis Suarez, who was serving a four-month ban from all football-related activity imposed by the FIFA Disciplinary Committee after biting Italian defender Giorgio Chiellini during his appearance for Uruguay in a World Cup group stage match.
Is there an answer to this question: Why was Saurez not playing for four months?

Answer:
ban from all football