10 most difficult United States riddles A list of ten (out of 109) United States related questions that are the most often answered incorrectly United States quiz Which river flows into Lake Ontario?Niagara River flows from Lake Erie to Lake Ontario.very hard 24% Niagara RiverNiagara River24%Saint Lawrence RiverSaint Lawrence River55%Ohio RiverOhio River13%Columbia RiverColumbia River6%Created by: globalquiz.org. Statistics based on 1646 answers in 9 languages »Canada riddles » Which large IT company doesn't have its headquarters in the Silicon Valley?IBM is a company based in New York. The history of IBM is longer than the history of Silicon Valley.very hard 25% IBMIBM25%AMDAMD25%GoogleGoogle28%AppleApple20%Created by: Ninjai. Statistics based on 3905 answers in 2 languages »California riddles » What city is the capital of New York state?Albany is the capital of the U.S. state of New York and the seat of Albany County. Roughly 150 miles (240 km) north of New York City, Albany developed on the west bank of the Hudson River, about 10 miles (16 km) south of its confluence with the Mohawk River. The population of the City of Albany was 97,856 according to the 2010 census.very hard 25% RochesterRochester12%New YorkNew York48%ManhattanManhattan13%AlbanyAlbany25%Created by: Tschuka. Statistics based on 3403 answers in 3 languages »the United States riddles » Who is depicted on the U.S. ten-dollar bill?Alexander Hamilton. The obverse of the $10 bill features the portrait of Alexander Hamilton, who served as the first U.S. Secretary of the Treasury.very hard 25% Alexander HamiltonAlexander Hamilton25%George WashingtonGeorge Washington26%Andrew JacksonAndrew Jackson15%Thomas JeffersonThomas Jefferson32%Created by: Ninjai. Statistics based on 612 answers in 2 languages »currencies riddles » 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 26% San Antonio SpursSan Antonio Spurs4%Chicago BullsChicago Bulls37%Boston CelticsBoston Celtics26%Los Angeles LakersLos Angeles Lakers32%Created by: smyru. Statistics based on 1461 answers in 3 languages »basketball riddles » Which European was the first to discover America?Bjarni Herjólfsson. Bjarni was heading to Greenland to visit his father in 986, when he drifted south and found himself near the coast of today Canada. Despite his crew eagerness, he refused to land and only attested the discovery of a land full of trees and hills.very hard 26% Bjarni HerjólfssonBjarni Herjólfsson26%Marco PoloMarco Polo8%Christopher ColumbusChristopher Columbus47%Amerigo VespucciAmerigo Vespucci17%Created by: smyru. Statistics based on 3090 answers in 2 languages »Peru riddles » What was the name of the dog of U.S. President Franklin D. Roosevelt?Fala was one of the most famous presidential pets. Given to the Roosevelts by a cousin, Fala knew how to perform tricks; the dog and his White House antics were mentioned frequently by the media and often referenced by Roosevelt and his wife Eleanor. Fala survived Roosevelt by seven years and was buried near him.very hard 26% BoyBoy28%TiplerTipler16%FalaFala26%DollyDolly28%Created by: Ninjai. Statistics based on 42 answers in 3 languages »dogs riddles » Which brewery was founded by Fritz Maytag?Anchor Brewing Company. Frederick Louis "Fritz" Maytag III is the former owner of Anchor Brewing Company in San Francisco. His revival of Anchor Steam beer inspired many other brewers to follow, and he is often considered the father of modern microbreweries.very hard 27% BudweiserBudweiser36%PaulanerPaulaner22%Anchor Brewing CompanyAnchor Brewing Company27%Sierra Nevada Brewing Co.Sierra Nevada Brewing Co.13%Created by: Tschuka. Statistics based on 787 answers in 2 languages »beer riddles » Who was the first immigrant to arrive at Ellis Island?Annie Moore. Ellis Island served as the United States' busiest immigrant inspection station from 1892 until 1954. Over 12 million immigrants passed through it during that time period. It has been estimated that close to 40 percent of all current U.S. citizens can trace at least one of their ancestors to Ellis Island.very hard 28% Jane DoeJane Doe16%Joan EllisJoan Ellis35%Annie MooreAnnie Moore28%Mary Todd LincolnMary Todd Lincoln18%Created by: Ninjai. Statistics based on 118 answers in 2 languages »peoples 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 29% 1111%2230%3328%4429%Created by: Kasia. Statistics based on 9604 answers in 2 languages »sport of North America riddles » Play United States quiz and see all the questions.