| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,774 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,229 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,650 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,033 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,993 |
| Official European Union Languages | 0 | - | 4.97 | 238,108 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,601 |
| Word Chain - South America | 0 | - | 4.51 | 23,871 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,765 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,149 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,650 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,507 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,082 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,270 |
| Peru True or False? | 0 | - | 4.58 | 15,236 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,442 |
| North America Map Quiz | 0 | - | 4.98 | 247,618 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,286 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,099 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 111,459 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,242 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,435 |
| Famous People from South America | 0 | - | 4.15 | 21,913 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,468 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,696 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,544 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,829 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,351 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,159 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,319 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,729 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,813 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,768 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,514 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,327 |
| States of Mexico | 0 | - | 4.95 | 175,478 |
| History of Mexico | 0 | - | 4.58 | 15,291 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,645 |
| States of Brazil | 0 | - | 4.97 | 87,618 |
| Central American Countries | 0 | - | 4.98 | 155,878 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,824 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,194 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,693 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,368 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,762 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,500 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,039 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,417 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,107 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,366 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,678 |
| Slavic Languages | 0 | - | 4.68 | 54,267 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,856 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,041 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,495 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,843 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,182 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,362 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,659 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,529 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,666 |
| Famous Caribbean People | 0 | - | 4.37 | 12,601 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,013 |
| Territories of the United States | 0 | - | 4.79 | 52,331 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,570 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,250 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,073 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,845 |
| New York City Geography | 0 | - | 4.42 | 33,054 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,506 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,193 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,537 |
| Top World Languages | 0 | - | 4.92 | 819,975 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,528 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,136 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,508 |
| Australian Capitals | 0 | - | 4.92 | 62,694 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,690 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,447 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,474 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,858 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,451 |
| Asia Map Quiz | 0 | - | 4.99 | 914,366 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,945 |
| Countries by Official Language | 0 | - | 4.95 | 194,598 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,526 |
| Places in their Native Language #2 | 0 | - | 4.81 | 133,784 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,469 |
| Countries in their Native Language | 0 | - | 4.99 | 198,140 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,516 |
| Countries of Africa | 0 | - | 5.00 | 2,529,725 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,591 |
| African East Coast | 0 | - | 4.96 | 95,811 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,598 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,448 |
| Australia Map Quiz | 0 | - | 4.95 | 343,808 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,248 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,079 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,712 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,310 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,557 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,424 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,256 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,694 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,601 |
| 75 Americans Named John | 0 | - | 4.41 | 23,889 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,957 |
| New York True or False? | 0 | - | 4.53 | 33,787 |
| The Most Recent... United States | 0 | - | 4.45 | 18,406 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,569 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,973 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,565 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,115 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,340 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,617 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,752 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,718 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,353 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,379 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,886 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,820 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,262 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,294 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,718 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,576 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,871 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,518 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,932 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,877 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,814 |
| The Only European Country ... | 0 | - | 4.91 | 215,958 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,761 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,754 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,620 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,767 |
| Spanish to English Country Names | 0 | - | 4.86 | 32,844 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,314 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,568 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,274 |
| German-Speaking Countries | 0 | - | 4.91 | 145,290 |
| Italian Name Translation | 0 | - | 4.82 | 46,345 |
| French-Speaking Countries | 0 | - | 4.85 | 270,177 |
| French Food Words | 0 | - | 4.80 | 194,572 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,270 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,864 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,200 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,631 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,378 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,988 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,065 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,148 |
| African Island Countries | 0 | - | 4.96 | 101,412 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,046 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,123 |
| Australian States and Territories | 0 | - | 4.96 | 141,687 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,228 |
| Australia True or False | 0 | - | 4.87 | 56,759 |
| Flags of North and South America | 0 | - | 4.99 | 371,837 |
| South American Physical Geography | 0 | - | 4.58 | 18,329 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,686 |
| Florida True or False? | 0 | - | 4.48 | 28,644 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,089 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,707 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,087 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,666 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,515 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,330 |
| US States with the Most Executions | 0 | - | 4.51 | 26,385 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,034 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,913 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,126 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,109 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,677 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,767 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,188 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,787 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,067 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,357 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,194 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,815 |
| Celtic Nations | 0 | - | 4.69 | 46,908 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,075 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,414 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,959 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,148 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,976 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,241 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,957 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,575 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,787 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,994 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,715 |
| Slavic Countries | 0 | - | 4.96 | 111,486 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,282 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,871 |
| Languages of Spain | 0 | - | 4.36 | 23,282 |
| Counties of England | 0 | - | 4.97 | 794,734 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,147 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,352 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,077 |
