The problem: Answer a question about this article:
Copper is synthesized in massive stars and is present in the Earth's crust at a concentration of about 50 parts per million (ppm), where it occurs as native copper or in minerals such as the copper sulfides chalcopyrite and chalcocite, the copper carbonates azurite and malachite, and the copper(I) oxide mineral cuprite. The largest mass of elemental copper discovered weighed 420 tonnes and was found in 1857 on the Keweenaw Peninsula in Michigan, US. Native copper is a polycrystal, with the largest described single crystal measuring 4.4×3.2×3.2 cm.
What is the concentration of copper in the earths crust.
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The answer: 50 parts per million


The problem: Answer a question about this article:
Many bird populations migrate long distances along a flyway. The most common pattern involves flying north in the spring to breed in the temperate or Arctic summer and returning in the autumn to wintering grounds in warmer regions to the south. Of course, in the southern hemisphere the directions are reversed, but there is less land area in the far south to support long-distance migration.
What is the most common directionof migration in autumn?
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The answer: south


The problem: Answer a question about this article:
The Times's main supplement, every day, is the times2, featuring various lifestyle columns. It was discontinued on 1 March 2010 but reintroduced on 11 October 2010 after negative feedback. Its regular features include a puzzles section called Mind Games. Its previous incarnation began on 5 September 2005, before which it was called T2 and previously Times 2. Regular features include columns by a different columnist each weekday. There was a column by Marcus du Sautoy each Wednesday, for example. The back pages are devoted to puzzles and contain sudoku, "Killer Sudoku", "KenKen", word polygon puzzles, and a crossword simpler and more concise than the main "Times Crossword".
What is the name of the sudoku game in The Times?
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The answer: Killer Sudoku


The problem: Answer a question about this article:
The Sustainable Development Goals are ambitious, and they will require enormous efforts across countries, continents, industries and disciplines - but they are achievable. UNFPA is working with governments, partners and other UN agencies to directly tackle many of these goals - in particular Goal 3 on health, Goal 4 on education and Goal 5 on gender equality - and contributes in a variety of ways to achieving many of the rest. 
Are the Sustainable Development Goals considered ambitious or modest in scope?
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The answer:
ambitious