Problem: Appalachian Mountains:

Eastern deciduous forests are subject to a number of serious insect and disease outbreaks. Among the most conspicuous is that of the introduced gypsy moth (Lymantria dispar), which infests primarily oaks, causing severe defoliation and tree mortality. But it also has the benefit of eliminating weak individuals, and thus improving the genetic stock, as well as creating rich habitat of a type through accumulation of dead wood. Because hardwoods sprout so readily, this moth is not as harmful as the hemlock woolly adelgid. Perhaps more serious is the introduced beech bark disease complex, which includes both a scale insect (Cryptococcus fagisuga) and fungal components.

What is worse than the hemlock woolly adelgid?
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A: unanswerable

Problem: Spielberg won the Academy Award for Best Director for Schindler's List (1993) and Saving Private Ryan (1998). Three of Spielberg's filmsJaws (1975), E.T. the Extra-Terrestrial (1982), and Jurassic Park (1993)achieved box office records, originated and came to epitomize the blockbuster film. The unadjusted gross of all Spielberg-directed films exceeds $9 billion worldwide, making him the highest-grossing director in history. His personal net worth is estimated to be more than $3 billion. He has been associated with composer John Williams since 1974, who composed music for all save five of Spielberg's feature films.
What record does Steven Spielberg have?
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Answer: the highest-grossing director in history

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The continuous torque density of conventional electric machines is determined by the size of the air-gap area and the back-iron depth, which are determined by the power rating of the armature winding set, the speed of the machine, and the achievable air-gap flux density before core saturation. Despite the high coercivity of neodymium or samarium-cobalt PMs, continuous torque density is virtually the same amongst electric machines with optimally designed armature winding sets. Continuous torque density relates to method of cooling and permissible period of operation before destruction by overheating of windings or PM damage.
How does non-continuous torque density vary between well designed motors?
A: unanswerable

Context and question: Maharaja Ranjit Singh's death in the summer of 1839 brought political chaos and the subsequent battles of succession and the bloody infighting between the factions at court weakened the state. Relationships with neighbouring British territories then broke down, starting the First Anglo-Sikh War; this led to a British official being resident in Lahore and the annexation in 1849 of territory south of the Satluj to British India. After the Second Anglo-Sikh War in 1849, the Sikh Empire became the last territory to be merged into British India. In Jhelum 35 British soldiers of HM XXIV regiment were killed by the local resistance during the Indian Rebellion of 1857.[citation needed]
What was the name of the British official stationed in Lahore?
Answer: unanswerable

Question: In 2007, however, a large current account deficit and rising inflation put pressure on Estonia's currency, which was pegged to the Euro, highlighting the need for growth in export-generating industries. Estonia exports mainly machinery and equipment, wood and paper, textiles, food products, furniture, and metals and chemical products. Estonia also exports 1.562 billion kilowatt hours of electricity annually. At the same time Estonia imports machinery and equipment, chemical products, textiles, food products and transportation equipment. Estonia imports 200 million kilowatt hours of electricity annually.
Is there an answer to this question: What area of commerce did Estonia need to expand?

Answer: export-generating industries

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Also, Kendals in Manchester can lay claim to being one of the oldest department stores in the UK. Beginning as a small shop owned by S. and J. Watts in 1796, its sold a variety of goods. Kendal Milne and Faulkner purchased the business in 1835. Expanding the space, rather than use it as a typical warehouse simply to showcase textiles, it became a vast bazaar. Serving Manchester's upmarket clientele for over 200 years, it was taken over by House of Fraser and recently rebranded as House of Fraser Manchester although most Mancunians still refer to it as Kendals. The Kendal Milne signage still remains over the main entrance to the art deco building in the city's Deansgate.
Who purchased a small shop in 1853, which would eventually become Kendals?
A:
unanswerable