The 2000 U.S. Census in the write-in response category had a code listing which standardizes the placement of various write-in responses for automatic placement within the framework of the U.S. Census's enumerated races. Whereas most responses can be distinguished as falling into one of the five enumerated races, there remains some write-in responses which fall into the "Mixture" heading which cannot be racially categorized. These include "Bi Racial, Combination, Everything, Many, Mixed, Multi National, Multiple, Several and Various".
How many race options were there?
five enumerated races

In August, the couple attended the 2011 MTV Video Music Awards, at which Beyonce performed "Love on Top" and started the performance saying "Tonight I want you to stand up on your feet, I want you to feel the love that's growing inside of me". At the end of the performance, she dropped her microphone, unbuttoned her blazer and rubbed her stomach, confirming her pregnancy she had alluded to earlier in the evening. Her appearance helped that year's MTV Video Music Awards become the most-watched broadcast in MTV history, pulling in 12.4 million viewers; the announcement was listed in Guinness World Records for "most tweets per second recorded for a single event" on Twitter, receiving 8,868 tweets per second and "Beyonce pregnant" was the most Googled term the week of August 29, 2011.
How many people watched the 2011 MTV Music Awards?
12.4 million

Major European rivers flow from Switzerland, such as the Rhine, the Rhone, the Inn, the Ticino and the Po, all of which have headwaters in the Alps and flow into neighbouring countries, finally emptying into the North Sea, the Mediterranean Sea, the Adriatic Sea and the Black Sea. Other rivers such as the Danube have major tributaries flowing into them that originate in the Alps. The Rhone is second to the Nile as a freshwater source to the Mediterranean Sea; the river begins as glacial meltwater, flows into Lake Geneva, and from there to France where one of its uses is to cool nuclear power plants. The Rhine originates in a 30 square kilometre area in Switzerland and represents almost 60 percent of water exported from the country. Tributary valleys, some of which are complicated, channel water to the main valleys which can experience flooding during the snow melt season when rapid runoff causes debris torrents and swollen rivers.
The Rhine, the Rhone, the Inn, the Ticino and the Po rivers flow from what Country?
Switzerland