Input: Read this: While successful predation results in a gain of energy, hunting invariably involves energetic costs as well. When hunger is not an issue, in general most predators will not seek to attack prey since the costs outweigh the benefits. For instance, a large predatory fish like a shark that is well fed in an aquarium will typically ignore the smaller fish swimming around it (while the prey fish take advantage of the fact that the apex predator is apparently uninterested). Surplus killing represents a deviation from this type of behaviour. The treatment of consumption in terms of cost-benefit analysis is known as optimal foraging theory, and has been quite successful in the study of animal behavior. In general, costs and benefits are considered in energy gain per unit time, though other factors are also important, such as essential nutrients that have no caloric value but are necessary for survival and health.
Question: What cost is involved in evading a predator?

Output: unanswerable


QUES: At certain times of the year, The Queen Mary 2, Queen Elizabeth and Queen Victoria may all visit Southampton at the same time, in an event commonly called 'Arrival of the Three Queens'.

What does Southampton call the event when three ships named after queens all visit the city?
What is the answer?
ANS: Arrival of the Three Queens


QUES: Through the 1860s, Victoria relied increasingly on a manservant from Scotland, John Brown. Slanderous rumours of a romantic connection and even a secret marriage appeared in print, and the Queen was referred to as "Mrs. Brown". The story of their relationship was the subject of the 1997 movie Mrs. Brown. A painting by Sir Edwin Henry Landseer depicting the Queen with Brown was exhibited at the Royal Academy, and Victoria published a book, Leaves from the Journal of Our Life in the Highlands, which featured Brown prominently and in which the Queen praised him highly.
Where was John brown, Victorias lover, from?

ANS: unanswerable


The country is a significant agricultural producer within the EU. Greece has the largest economy in the Balkans and is as an important regional investor. Greece was the largest foreign investor in Albania in 2013, the third in Bulgaria, in the top-three in Romania and Serbia and the most important trading partner and largest foreign investor in the former Yugoslav Republic of Macedonia. The Greek telecommunications company OTE has become a strong investor in former Yugoslavia and in other Balkan countries.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What Greek telecommunications company has become a strong investor in former Yugoslavia?
Ah, so.. OTE


Question: People lived on the edge of the desert thousands of years ago since the last ice age. The Sahara was then a much wetter place than it is today. Over 30,000 petroglyphs of river animals such as crocodiles survive, with half found in the Tassili n'Ajjer in southeast Algeria. Fossils of dinosaurs, including Afrovenator, Jobaria and Ouranosaurus, have also been found here. The modern Sahara, though, is not lush in vegetation, except in the Nile Valley, at a few oases, and in the northern highlands, where Mediterranean plants such as the olive tree are found to grow. It was long believed that the region had been this way since about 1600 BCE, after shifts in the Earth's axis increased temperatures and decreased precipitation. However, this theory has recently been called into dispute, when samples taken from several 7 million year old sand deposits led scientists to reconsider the timeline for desertification.
Try to answer this question if possible: How many dinosaur fossils have been found?
Answer: unanswerable


Question: Some hunter-gatherer cultures, such as the indigenous peoples of the Pacific Northwest Coast, lived in particularly rich environments that allowed them to be sedentary or semi-sedentary.
Try to answer this question if possible: What is the life style of the indigenous people of the Pacific Northwest?
Answer:
hunter-gatherer