The problem: Answer a question about this article:
An electromagnetic wave refractor in some aperture antennas is a component which due to its shape and position functions to selectively delay or advance portions of the electromagnetic wavefront passing through it. The refractor alters the spatial characteristics of the wave on one side relative to the other side. It can, for instance, bring the wave to a focus or alter the wave front in other ways, generally in order to maximize the directivity of the antenna system. This is the radio equivalent of an optical lens.
What changes the structuak traits of a wave on either side?
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The answer: refractor

The problem: Answer a question about this article:
Prior to King Henry's departure for the Battle of Agincourt in 1415, the ringleaders of the "Southampton Plot"Richard, Earl of Cambridge, Henry Scrope, 3rd Baron Scrope of Masham, and Sir Thomas Grey of Hetonwere accused of high treason and tried at what is now the Red Lion public house in the High Street. They were found guilty and summarily executed outside the Bargate.
What group did the men accused of high treason, including Henry Scrope and Sir Thomas Grey, lead?
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The answer: Southampton Plot

The problem: Answer a question about this article:
The editor, Larry Lamb, was originally from a Labour background, with a socialist upbringing while his temporary replacement Bernard Shrimsley (197275) was a middle-class uncommitted Conservative. An extensive advertising campaign on the ITV network in this period, voiced by actor Christopher Timothy, may have helped The Sun to overtake the Daily Mirror's circulation in 1978. Despite the industrial relations of the 1970s the so-called "Spanish practices" of the print unions The Sun was very profitable, enabling Murdoch to expand his operations to the United States from 1973.
Where did Murdoch begin expanding?
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The answer: United States

The problem: Answer a question about this article:
India, while remaining an active member of the Commonwealth, chose as a republic to institute its own set of honours awarded by the President of India who holds a republican position some consider similar to that of the monarch in Britain. These are commonly referred to as the Padma Awards and consist of Padma Vibhushan, Padma Bhushan and Padma Shri in descending order. These do not carry any decoration or insignia that can be worn on the person and may not be used as titles along with individuals' names.
What does not carry any decoration or insignia that can be worn on the person?
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The answer:
Padma Vibhushan, Padma Bhushan and Padma Shri