Problem: Classical music:

It is in this time that the notation of music on a staff and other elements of musical notation began to take shape. This invention made possible the separation of the composition of a piece of music from its transmission; without written music, transmission was oral, and subject to change every time it was transmitted. With a musical score, a work of music could be performed without the composer's presence. The invention of the movable-type printing press in the 15th century had far-reaching consequences on the preservation and transmission of music.

What was oral music subject to every time is was transmitted?
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A: change

Problem: Crimean War:

Nicholas felt that, because of Russian assistance in suppressing the Hungarian revolution of 1848, Austria would side with him, or at the very least remain neutral. Austria, however, felt threatened by the Russian troops in the Balkans. On 27 February 1854, the United Kingdom and France demanded the withdrawal of Russian forces from the principalities; Austria supported them and, though it did not declare war on Russia, it refused to guarantee its neutrality. Russia's rejection of the ultimatum caused the UK and France to enter the war.

In what year did the Hungarian revolution take place?
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A: 1848

Problem: Imperial College London:

Imperial College Union, the students' union at Imperial College, is run by five full-time sabbatical officers elected from the student body for a tenure of one year, and a number of permanent members of staff. The Union is given a large subvention by the university, much of which is spent on maintaining around 300 clubs, projects and societies. Examples of notable student groups and projects are Project Nepal which sends Imperial College students to work on educational development programmes in rural Nepal and the El Salvador Project, a construction based project in Central America. The Union also hosts sports-related clubs such as Imperial College Boat Club and Imperial College Gliding Club.

Where are staff sent to work on building projects?
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A: unanswerable

Problem: IBM:

In 2002, IBM acquired PwC consulting. In 2003 it initiated a project to redefine company values. Using its Jam technology, it hosted a three-day Internet-based online discussion of key business issues with 50,000 employees. Results were data mined with sophisticated text analysis software (eClassifier) for common themes. Three emerged, expressed as: "Dedication to every client's success", "Innovation that mattersfor our company and for the world", and "Trust and personal responsibility in all relationships". Another three-day Jam took place in 2004, with 52,000 employees discussing ways to implement company values in practice.

How many employees took part in the subsequent online discussion in 2004?
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A:
52,000 employees