Problem: Cubist sculpture developed in parallel to Cubist painting. During the autumn of 1909 Picasso sculpted Head of a Woman (Fernande) with positive features depicted by negative space and vice versa. According to Douglas Cooper: "The first true Cubist sculpture was Picasso's impressive Woman's Head, modeled in 190910, a counterpart in three dimensions to many similar analytical and faceted heads in his paintings at the time." These positive/negative reversals were ambitiously exploited by Alexander Archipenko in 191213, for example in Woman Walking. Joseph Csaky, after Archipenko, was the first sculptor in Paris to join the Cubists, with whom he exhibited from 1911 onwards. They were followed by Raymond Duchamp-Villon and then in 1914 by Jacques Lipchitz, Henri Laurens and Ossip Zadkine.
When was Leg of a Woman sculpted?
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Answer: unanswerable

Problem: An ancient Indian treatise on statecraft, economic policy and military strategy by Kautilya and Vishnugupta, who are traditionally identified with Chanakya (c. 350-283 BCE). In this treatise, the behaviors and relationships of the people, the King, the State, the Government Superintendents, Courtiers, Enemies, Invaders, and Corporations are analysed and documented. Roger Boesche describes the Arthasastra as "a book of political realism, a book analysing how the political world does work and not very often stating how it ought to work, a book that frequently discloses to a king what calculating and sometimes brutal measures he must carry out to preserve the state and the common good."
When was Chanakya alive?
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Answer: 350-283 BCE

Problem: The manipulation of time at higher latitudes (for example Iceland, Nunavut or Alaska) has little impact on daily life, because the length of day and night changes more extremely throughout the seasons (in comparison to other latitudes), and thus sunrise and sunset times are significantly out of sync with standard working hours regardless of manipulations of the clock. DST is also of little use for locations near the equator, because these regions see only a small variation in daylight in the course of the year.
What latitudes see more extreme changes in the length of their days and nights throughout the year?
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Answer:
higher latitudes