| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,361 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,634 |
| States of Brazil | 0 | - | 4.97 | 89,375 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,809 |
| States of Mexico | 0 | - | 4.96 | 177,815 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,488 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,980 |
| Word Chain - South America | 0 | - | 4.51 | 23,988 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,753 |
| Flags of North and South America | 0 | - | 4.99 | 376,167 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,486 |
| South American Physical Geography | 0 | - | 4.58 | 18,390 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,725 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,622 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,469 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,495 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,267 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,454 |
| The Only American Country ... | 0 | - | 4.92 | 122,103 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,556 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,790 |
| Famous People from South America | 0 | - | 4.15 | 22,068 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,697 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,785 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,802 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,671 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,849 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,858 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,204 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,390 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,706 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,728 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,840 |
| History of Mexico | 0 | - | 4.52 | 15,358 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,487 |
| South America A-Z | 0 | - | 4.15 | 10,940 |
| Central American Countries | 0 | - | 4.98 | 157,175 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,193 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,992 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,387 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,225 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,361 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,982 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,062 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,632 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,571 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 92,470 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,823 |
| Pixelated United States Map | 0 | - | 4.88 | 94,710 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,362 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,314 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,428 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,636 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,900 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,129 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,127 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,162 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,155 |
| U.S. States By Population | 0 | - | 4.92 | 154,033 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,077 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,804 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,977 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,772 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,482 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,001 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,553 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,117 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,595 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,780 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,593 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,340 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,956 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,928 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,564 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,954 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,870 |
| Canada True or False? | 0 | - | 4.57 | 55,082 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,905 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,718 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,385 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,377 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,920 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,449 |
| Florida True or False? | 0 | - | 4.48 | 28,754 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,767 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,990 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,959 |
| Belize Country Quiz | 0 | - | 4.85 | 21,064 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,763 |
| Famous Caribbean People | 0 | - | 4.37 | 12,652 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,126 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,910 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,289 |
| Territories of the United States | 0 | - | 4.80 | 52,579 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,841 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,988 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,461 |
| California Multiple Choice | 0 | - | 4.40 | 28,163 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,199 |
| New York City Geography | 0 | - | 4.43 | 33,172 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,353 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,826 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,466 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,118 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,242 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,414 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,123 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,359 |
| Australian Capitals | 0 | - | 4.92 | 62,812 |
| South American Cities on the Map | 0 | - | 4.52 | 35,532 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,309 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,690 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,656 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,265 |
| United States Country Quiz | 0 | - | 4.43 | 102,064 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,035 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,829 |
| North Carolina... or South Carolina? | 0 | - | 4.21 | 10,555 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,113 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 22,278 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,654 |
| Canada Country Quiz | 0 | - | 4.55 | 132,938 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,528 |
| Canada A-Z | 0 | - | 4.73 | 32,944 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,585 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,609 |
| Official European Union Languages | 0 | - | 4.97 | 239,537 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,513 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,404 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,551 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,413 |
| Asia Map Quiz | 0 | - | 4.99 | 923,687 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,165 |
| Which Asian Country? | 0 | - | 4.64 | 57,710 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,704 |
| Which African Country? | 0 | - | 4.58 | 36,439 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,329 |
| Australia Map Quiz | 0 | - | 4.95 | 345,888 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,377 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,638 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,844 |
| Peru True or False? | 0 | - | 4.58 | 15,303 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,767 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,855 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,220 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,771 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,602 |
| Top U.S. Universities | 0 | - | 4.15 | 145,679 |
| Largest United States Airlines | 0 | - | 4.39 | 55,133 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,763 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,324 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,376 |
| 75 Americans Named John | 0 | - | 4.41 | 23,961 |
| U.S. States by Governor | 0 | - | 4.43 | 18,109 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,753 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,760 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,074 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,899 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,577 |
| Events in U.S. History | 0 | - | 4.41 | 28,792 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,180 |
| New England States | 0 | - | 4.51 | 59,882 |
| U.S. States by Land Area | 0 | - | 4.63 | 53,016 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,101 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,599 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,310 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,067 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,243 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,102 |
| U.S. States by Borders | 0 | - | 4.62 | 35,444 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 188,303 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,657 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,286 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,242 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,411 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,885 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,193 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,956 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,808 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,411 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,486 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,828 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,285 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,202 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,553 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,972 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,215 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,055 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,248 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.44 | 70,225 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.74 | 64,176 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,673 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,560 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,827 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 35,164 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,411 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,275 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,586 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,864 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,172 |
