Problem: Mosaic:

Southern Italy was also part of the Norman kingdom but great mosaics did not survive in this area except the fine mosaic pavement of the Otranto Cathedral from 1166, with mosaics tied into a tree of life, mostly still preserved. The scenes depict biblical characters, warrior kings, medieval beasts, allegories of the months and working activity. Only fragments survived from the original mosaic decoration of Amalfi's Norman Cathedral. The mosaic ambos in the churches of Ravello prove that mosaic art was widespread in Southern Italy during the 11th–13th centuries.

The mosaics in churches of Ravello prove what?
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A: mosaic art was widespread


Problem: Web browser:

Web browsers consist of a user interface, layout engine, rendering engine, JavaScript interpreter, UI backend, networking component and data persistence component. These components achieve different functionalities of a web browser and together provide all capabilities of a web browser.

What parts of a layout engine make up a data persistence component?
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A: unanswerable


Problem: Chicago Cubs:

The Chicago White Stockings, (today's Chicago Cubs), began spring training in Hot Springs, Arkansas in 1886. President Albert Spalding (founder of Spalding Sporting Goods) and player/manager Cap Anson brought their players to Hot Springs and played at the Hot Springs Baseball Grounds. The concept was for the players to have training and fitness before the start of the regular season. After the White Stockings had a successful season in 1886, winning the National League Pennant, other teams began bringing their players to "spring training".  The Chicago Cubs, St. Louis Browns, New York Yankees, St. Louis Cardinals, Cleveland Spiders, Detroit Tigers, Pittsburgh Pirates, Cincinnati Reds, New York Highlanders, Brooklyn Dodgers and Boston Red Sox were among the early squads to arrive. Whittington Park (1894) and later Majestic Park (1909) and Fogel Field (1912) were all built in Hot Springs specifically to host Major League teams. 

Who began spring training in Hot Springs, Arkansas in 1886?
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A: Chicago White Stockings


Problem: Frédéric Chopin:

Chopin's life was covered in a BBC TV documentary Chopin – The Women Behind The Music (2010), and in a 2010 documentary realised by Angelo Bozzolini and Roberto Prosseda for Italian television.

What are the names of the two people that created a documentary for Italian tele vision?
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A:
Angelo Bozzolini and Roberto Prosseda