Problem: Bird migration:

Birds need to alter their metabolism in order to meet the demands of migration. The storage of energy through the accumulation of fat and the control of sleep in nocturnal migrants require special physiological adaptations. In addition, the feathers of a bird suffer from wear-and-tear and require to be molted. The timing of this molt - usually once a year but sometimes twice - varies with some species molting prior to moving to their winter grounds and others molting prior to returning to their breeding grounds. Apart from physiological adaptations, migration sometimes requires behavioural changes such as flying in flocks to reduce the energy used in migration or the risk of predation.

When do birds molt?
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A: varies with some species

Problem: Myanmar:

Flights are available from most countries, though direct flights are limited to mainly Thai and other ASEAN airlines. According to Eleven magazine, "In the past, there were only 15 international airlines and increasing numbers of airlines have began launching direct flights from Japan, Qatar, Taiwan, South Korea, Germany and Singapore." Expansions were expected in September 2013, but yet again are mainly Thai and other Asian-based airlines according to Eleven Media Group's Eleven, "Thailand-based Nok Air and Business Airlines and Singapore-based Tiger Airline".

Can one travel by plane from any country in Myanmar ?
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A: Flights are available from most countries

Problem: Aspirated consonant:

Although most aspirated obstruents in the world's language are stops and affricates, aspirated fricatives such as [s], [f] or [] have been documented in Korean, in a few Tibeto-Burman languages, in some Oto-Manguean languages, and in the Siouan language Ofo. Some languages, such as Choni Tibetan, have up to four contrastive aspirated fricatives [s] [], [] and [x].

The Siouan language Ofo has how many contrastive aspirated fricatives?
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A: unanswerable

Problem: European Central Bank:

This has led to public discussions if Greece, Portugal, and even Italy would be better off leaving the eurozone to regain economical and financial stability if they would not implement reforms to strengthen their competitiveness as part of the eurozone in time. Greece had the greatest need for reforms but also most problems to implement those, so the Greek exit, also called "Grexit", has been widely discussed. Germany, as a large and financially stable state being in the focus to be asked to guarantee or repay other states debt, has never pushed those exits. Their position is to keep Greece within the eurozone, but not at any cost. If the worst comes to the worst, priority should be given to the euro's stability.

What country is least financially stable?
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A:
unanswerable