10 most difficult United States riddles A list of ten (out of 73) United States related questions that are the most often answered incorrectly United States quiz Which team won the most of NBA championships?Boston Celtics. Celtics dominated the League in the '60s winning 8 titles in a row and missing only one season of 1966-67. Boston total score is 17 championships. Next comes LA Lakers (16), Chicago Bulls (6) and San Antonio Spurs (5).very hard 25% San Antonio SpursSan Antonio Spurs3%Chicago BullsChicago Bulls37%Boston CelticsBoston Celtics25%Los Angeles LakersLos Angeles Lakers33%Created by: smyru. Statistics based on 655 answers in 2 languages »sport riddles » 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 4498 answers in 4 languages »rivers of North America riddles » Which river flows into Lake Ontario?Niagara River flows from Lake Erie to Lake Ontario.very hard 26% Niagara RiverNiagara River26%Saint Lawrence RiverSaint Lawrence River55%Ohio RiverOhio River11%Columbia RiverColumbia River6%Created by: globalquiz.org. Statistics based on 805 answers in 9 languages »lakes riddles » Which state in the United States has a city that has their McDonald's sign turquoise? Arizona. The city of Sedona in Arizona mixes the yellow M with rock around it to make it turquoise. Officials in Sedona, Arizona told the fast-food giant they were unable to open a restaurant with the trademark yellow logo. This is due to the city's strict regulations which prevent buildings from ruining the picturesque view of the desert. very hard 27% ArizonaArizona27%NebraskaNebraska27%West VirginiaWest Virginia18%CaliforniaCalifornia27%Created by: yoshchim. Statistics based on 11 answers »logo 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 8693 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 6030 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 6664 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 3998 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 11307 answers in 4 languages »soil 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 7423 answers in 4 languages »Hawaii riddles » Play United States quiz and see all the questions.