10 most difficult North America riddles A list of ten (out of 101) North America related questions that are the most often answered incorrectly North America quiz What is the longest river in the United States?Missouri. The Missouri River is the longest river in North America. Having 2,341 mi (3,768 km), it is longer than the Mississippi (2,202 mi 3,544 km). When combined with the lower Mississippi River, it forms the world's third longest river system, after the Nile and Amazon.very hard 26% MississippiMississippi58%MissouriMissouri26%YukonYukon8%Rio GrandeRio Grande6%Created by: Shankar Kumar. Statistics based on 4492 answers in 4 languages »rivers of North America riddles » Who built and lived in Teotihuacan, the most impressive pre-Columbian Mesoamerican city?It is not known. The city is ancient - its largest pyramid, the Pyramid of the Sun, was completed by AD 100. It predates most known cultures of Mesoamerica. The origin of its founders is uncertain, and its original name is also unknown. It housed a population of about 150,000 people, making it one of the largest cities in the world at that time. very hard 28% MayansMayans20%AztecsAztecs34%IncasIncas16%it is not knownit is not known28%Created by: globalquiz.org. Statistics based on 3852 answers in 2 languages »America riddles » What is the third longest river of the North America? (after Mississippi and Missouri)Yukon, having 1,979 mi (3,185 km), is just 223 miles shorter than Mississippi. Despite its length, there are only four vehicles-carrying bridges across the river.very hard 30% Rio GrandeRio Grande23%YukonYukon30%ColoradoColorado41%ArkansasArkansas3%Created by: globalquiz.org. Statistics based on 8682 answers in 2 languages »geography of the United States riddles » How many Summer Olympic games were held in the United States?4. There were Olympic Games in St. Louis (1904), twice in Los Angeles (1932, 1984) and in Atlanta (1996)very hard 31% 1110%2228%3329%4431%Created by: Kasia. Statistics based on 6021 answers in 2 languages »sport of North America riddles » What nationality was Martin Van Buren?American. Martin Van Buren was the eighth president of the United States. 'Van' suggests Dutch origin of his surname, but the capitalized form indicates anglicised version - like Eddie Van Halen (as opposite to Dutch lower-case Vincent van Gogh).very hard 32% DutchDutch52%AmericanAmerican32%RussianRussian3%GermanGerman11%Created by: globalquiz.org. Statistics based on 6613 answers in 2 languages »presidents of the United States riddles » Which was the last of the contiguous states to become a U.S. state?Arizona is the place of the Apache resistance. It became a U.S. state on February 14, 1912. This resulted in the end to the territorial colonization of Continental North America. very hard 32% New YorkNew York17%TexasTexas21%ArizonaArizona32%North DakotaNorth Dakota28%Created by: Sumit Tamang. Statistics based on 3996 answers in 2 languages »Amerindians riddles » Why is White Sands Desert in New Mexico so purely white?It is gypsum. White Sands, having 442 total square kilometers of dune fields, is the world's largest surface deposit of gypsum. Unlike other desert sands, it is cool to the touch, due to the high rate of evaporation of surface moisture and the fact that the sands reflect, rather than absorb, the sun's rays.very hard 32% it is gypsumit is gypsum32%it is very fine grained sandit is very fine grained sand10%it iswhite quartzit iswhite quartz35%it is an optical illusionit is an optical illusion22%Created by: Debbie Fox. Statistics based on 11286 answers in 4 languages »soil riddles » Who was the first to navigate the Northwest Passage? (sea route connecting the Atlantic and Pacific Oceans)Roald Amundsen. In a three year journey between 1903 and 1906, Amundsen explored the passage with a crew of no more than six, in the converted 47-ton herring boat Gjøa. Spending winters with ship trapped in ice, he learned from the local Netsilik people about Arctic survival skills that would later prove useful. For example, he learned to use sled dogs and to wear animal skins in lieu of heavy, woolen parkas. Amundsen later led the expeditions to discover the South Pole (1911) and the North Pole (1926).very hard 34% James CookJames Cook23%Vitus BeringVitus Bering28%Roald AmundsenRoald Amundsen34%No one yetNo one yet13%Created by: globalquiz.org. Statistics based on 8516 answers in 4 languages »geography of Canada riddles » Which battle does the French Foreign Legion celebrate each year?The battle of Camarón (Mexico). On 30 April 1863 a small infantry patrol of French Foreign Legion, numbering 62 soldiers and three officers was attacked and besieged by a force that may have eventually reached 3,000 Mexican infantry and cavalry. They made a defensive stand at the nearby Hacienda Camarón, with a plan to occupy Mexican forces to prevent attacks against the nearby French supply convoy. Only two legionnaires survived, but they stopped Mexicans for the whole day and reached their goal.very hard 35% battle of Yu Oc (Vietnam)battle of Yu Oc (Vietnam)12%battle of Borodino (Russia)battle of Borodino (Russia)10%battle of the Somme (France)battle of the Somme (France)41%the battle of Camarón (Mexico)the battle of Camarón (Mexico)35%Created by: Teddy. Statistics based on 6064 answers in 2 languages »history of France riddles » Which volcano is known as being one of the most active, but at the same one of the least violent in the world?Kīlauea, Hawaii. Kīlauea is one of the most active volcanoes on the planet and an invaluable resource for volcanologists who are able to study it up close due to its exclusively non-violent effusive activity. Kīlauea lacks a distinct peak and lies close to Mauna Loa.very hard 36% Mt Etna, ItalyMt Etna, Italy22%Kīlauea, HawaiiKīlauea, Hawaii36%Eyjafjallajökull, IcelandEyjafjallajökull, Iceland33%Mt Pinatubo, PhilippinesMt Pinatubo, Philippines7%Created by: globalquiz.org. Statistics based on 7400 answers in 4 languages »Hawaii riddles » Play North America quiz and see all the questions.