| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,946 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,089 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,745 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,186 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,162 |
| Official European Union Languages | 0 | - | 4.97 | 238,570 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,901 |
| Word Chain - South America | 0 | - | 4.51 | 23,911 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,997 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,154 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,117 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,626 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,253 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,821 |
| Peru True or False? | 0 | - | 4.58 | 15,260 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,644 |
| North America Map Quiz | 0 | - | 4.98 | 248,634 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,719 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,601 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 111,896 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,465 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,531 |
| Famous People from South America | 0 | - | 4.15 | 21,981 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,439 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,013 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,693 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,210 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,498 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,503 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,489 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,103 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,955 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,784 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,591 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,482 |
| States of Mexico | 0 | - | 4.96 | 176,197 |
| History of Mexico | 0 | - | 4.58 | 15,310 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,963 |
| States of Brazil | 0 | - | 4.97 | 88,175 |
| Central American Countries | 0 | - | 4.98 | 156,503 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,512 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,266 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,735 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,557 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,035 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,764 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,233 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,542 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,271 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,564 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,680 |
| Slavic Languages | 0 | - | 4.68 | 54,380 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,265 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,133 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,543 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,124 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,661 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,568 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,227 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,559 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,700 |
| Famous Caribbean People | 0 | - | 4.37 | 12,624 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,042 |
| Territories of the United States | 0 | - | 4.80 | 52,410 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,681 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,496 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,201 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,017 |
| New York City Geography | 0 | - | 4.42 | 33,105 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,613 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,174 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,117 |
| Top World Languages | 0 | - | 4.92 | 822,552 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,423 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,153 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,593 |
| Australian Capitals | 0 | - | 4.92 | 62,729 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,833 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,543 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,316 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,906 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,450 |
| Asia Map Quiz | 0 | - | 4.99 | 917,179 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,110 |
| Countries by Official Language | 0 | - | 4.95 | 194,987 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,986 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,013 |
| Countries in their Native Language | 0 | - | 4.99 | 198,493 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,830 |
| Countries of Africa | 0 | - | 5.00 | 2,538,174 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,868 |
| African East Coast | 0 | - | 4.96 | 96,100 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,920 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,736 |
| Australia Map Quiz | 0 | - | 4.95 | 344,688 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,270 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,181 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,759 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,352 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,579 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,466 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,322 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,721 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,639 |
| 75 Americans Named John | 0 | - | 4.41 | 23,908 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,028 |
| New York True or False? | 0 | - | 4.53 | 33,832 |
| The Most Recent... United States | 0 | - | 4.45 | 18,454 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,679 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 33,048 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,687 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,214 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,394 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,696 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,927 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,877 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,428 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,598 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,991 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,922 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,413 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,329 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,348 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,663 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,980 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,118 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,559 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,002 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,318 |
| The Only European Country ... | 0 | - | 4.91 | 216,749 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,202 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,851 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,016 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,209 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,147 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,410 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,704 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,390 |
| German-Speaking Countries | 0 | - | 4.92 | 145,596 |
| Italian Name Translation | 0 | - | 4.83 | 46,894 |
| French-Speaking Countries | 0 | - | 4.85 | 270,568 |
| Officially Recognized Languages of India | 0 | - | 4.39 | 31,353 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,992 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,606 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,042 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,617 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,285 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,295 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,567 |
| African Island Countries | 0 | - | 4.96 | 101,663 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,470 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,307 |
| Australian States and Territories | 0 | - | 4.96 | 142,026 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,297 |
| Australia True or False | 0 | - | 4.87 | 56,873 |
| Flags of North and South America | 0 | - | 4.99 | 373,261 |
| South American Physical Geography | 0 | - | 4.58 | 18,355 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,710 |
| Florida True or False? | 0 | - | 4.48 | 28,687 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,116 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,737 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,143 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,704 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,582 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,409 |
| US States with the Most Executions | 0 | - | 4.51 | 26,398 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,070 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,021 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,166 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,152 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,716 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,805 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,218 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,893 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,341 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,389 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,304 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,752 |
| Celtic Nations | 0 | - | 4.69 | 46,954 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,043 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,705 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,241 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,811 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,189 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,394 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,633 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,027 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,286 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,335 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,235 |
| Slavic Countries | 0 | - | 4.96 | 111,701 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,367 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,025 |
| Languages of Spain | 0 | - | 4.36 | 23,325 |
| Counties of England | 0 | - | 4.97 | 797,221 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,224 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,833 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,271 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,783 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,184 |
