Problem: Memory:

Short-term memory is also known as working memory. Short-term memory allows recall for a period of several seconds to a minute without rehearsal. Its capacity is also very limited: George A. Miller (1956), when working at Bell Laboratories, conducted experiments showing that the store of short-term memory was 72 items (the title of his famous paper, "The magical number 72"). Modern estimates of the capacity of short-term memory are lower, typically of the order of 45 items; however, memory capacity can be increased through a process called chunking. For example, in recalling a ten-digit telephone number, a person could chunk the digits into three groups: first, the area code (such as 123), then a three-digit chunk (456) and lastly a four-digit chunk (7890). This method of remembering telephone numbers is far more effective than attempting to remember a string of 10 digits; this is because we are able to chunk the information into meaningful groups of numbers. This may be reflected in some countries in the tendency to display telephone numbers as several chunks of two to four numbers.

What exactly does short-term memory allow a person to do?
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A: recall for a period of several seconds to a minute without rehearsal

Problem: Marshall Islands:

Agricultural production is concentrated on small farms.[citation needed] The most important commercial crops are coconuts, tomatoes, melons, and breadfruit.[citation needed]

Along with coconuts, tomatoes and melons, what crops are notably grown in the Marshalls?
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A: breadfruit

Problem: YouTube:

In a video posted on July 21, 2009, YouTube software engineer Peter Bradshaw announced that YouTube users can now upload 3D videos. The videos can be viewed in several different ways, including the common anaglyph (cyan/red lens) method which utilizes glasses worn by the viewer to achieve the 3D effect. The YouTube Flash player can display stereoscopic content interleaved in rows, columns or a checkerboard pattern, side-by-side or anaglyph using a red/cyan, green/magenta or blue/yellow combination. In May 2011, an HTML5 version of the YouTube player began supporting side-by-side 3D footage that is compatible with Nvidia 3D Vision.

What did YouTube begin supporting in July 2011?
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A: unanswerable

Problem: Iranian languages:

The use of the term for the Iranian language family was introduced in 1836 by Christian Lassen. Robert Needham Cust used the term Irano-Aryan in 1878, and Orientalists such as George Abraham Grierson and Max Muller contrasted Irano-Aryan (Iranian) and Indo-Aryan (Indic). Some recent scholarship, primarily in German, has revived this convention.

When was the phrase Irano-Aryan first used?
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A:
1878