QUES: From mid-May to September 1989, Ukrainian Greek-Catholic hunger strikers staged protests on Moscow's Arbat to call attention to the plight of their Church. They were especially active during the July session of the World Council of Churches held in Moscow. The protest ended with the arrests of the group on September 18. On May 27, 1989, the founding conference of the Lviv regional Memorial Society was held. On June 18, 1989, an estimated 100,000 faithful participated in public religious services in Ivano-Frankivsk in western Ukraine, responding to Cardinal Myroslav Lubachivsky's call for an international day of prayer.

When did the Lviv regional Memorial Society have its first conference?
What is the answer?
ANS: May 27, 1989
QUES: Von Neumann founded the field of game theory as a mathematical discipline. Von Neumann proved his minimax theorem in 1928. This theorem establishes that in zero-sum games with perfect information (i.e. in which players know at each time all moves that have taken place so far), there exists a pair of strategies for both players that allows each to minimize his maximum losses, hence the name minimax. When examining every possible strategy, a player must consider all the possible responses of his adversary. The player then plays out the strategy that will result in the minimization of his maximum loss.

what are the possible strategies in minimax theory?
What is the answer?
ANS: a pair of strategies for both players that allows each to minimize his maximum losses
QUES: Predatory animals often use their usual methods of attacking prey to inflict or to threaten grievous injury to their own predators. The electric eel uses the same electric current to kill prey and to defend itself against animals (anacondas, caimans, egrets, jaguars, mountain lions, giant otters, humans, dogs, and cats) that ordinarily prey upon fish similar to an electric eel in size; the electric eel thus remains an apex predator in a predator-rich environment. A predator small enough to be prey for others, the domestic cat uses its formidable teeth and claws as weapons against animals that might confuse a cat with easier prey. Many non-predatory prey animals, such as a zebra, can give a strong kick that can maim or kill, while others charge with tusks or horns.

What is the favorite food of an electric eel?
What is the answer?
ANS:
unanswerable