The problem: Answer a question about this article:
An alloy of aluminium and gallium in pellet form added to water can be used to generate hydrogen. The process also produces alumina, but the expensive gallium, which prevents the formation of an oxide skin on the pellets, can be re-used. This has important potential implications for a hydrogen economy, as hydrogen can be produced on-site and does not need to be transported.
What else can it produce?
****
The answer: alumina


The problem: Answer a question about this article:
In modern times Cypriot art history begins with the painter Vassilis Vryonides (1883–1958) who studied at the Academy of Fine Arts in Venice. Arguably the two founding fathers of modern Cypriot art were Adamantios Diamantis (1900–1994) who studied at London's Royal College of Art and Christopheros Savva (1924–1968) who also studied in London, at Saint Martin's School of Art. In many ways these two artists set the template for subsequent Cypriot art and both their artistic styles and the patterns of their education remain influential to this day. In particular the majority of Cypriot artists still train in England while others train at art schools in Greece and local art institutions such as the Cyprus College of Art, University of Nicosia and the Frederick Institute of Technology.
Name the other individual considered the founding fathers of modern Cypriot art.
****
The answer: Christopheros Savva


The problem: Answer a question about this article:
A nonstandard dialect, like a standard dialect, has a complete vocabulary, grammar, and syntax, but is usually not the beneficiary of institutional support. Examples of a nonstandard English dialect are Southern American English, Western Australian English, Scouse and Tyke. The Dialect Test was designed by Joseph Wright to compare different English dialects with each other.
Along with a syntax and grammar, what attribute does a dialect possess?
****
The answer: vocabulary


The problem: Answer a question about this article:
The 'OtherOS' functionality was not present in the updated PS Slim models, and the feature was subsequently removed from previous versions of the PS3 as part of the machine's firmware update version 3.21 which was released on April 1, 2010; Sony cited security concerns as the rationale. The firmware update 3.21 was mandatory for access to the PlayStation Network. The removal caused some controversy; as the update removed officially advertised features from already sold products, and gave rise to several class action lawsuits aimed at making Sony return the feature or provide compensation.
What legal action did some disgruntled OtherOS users take against Sony?
****
The answer:
class action lawsuits