| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,373 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,913 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,463 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,780 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,743 |
| Official European Union Languages | 0 | - | 4.97 | 237,317 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,124 |
| Word Chain - South America | 0 | - | 4.51 | 23,793 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,494 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,485 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,910 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,282 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,365 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,571 |
| Peru True or False? | 0 | - | 4.58 | 15,206 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,955 |
| North America Map Quiz | 0 | - | 4.98 | 245,712 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,975 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,998 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 110,613 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,872 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,310 |
| Famous People from South America | 0 | - | 4.15 | 21,832 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,351 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,223 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,106 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,256 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,084 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,580 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,028 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,246 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,612 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,758 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,409 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,037 |
| States of Mexico | 0 | - | 4.95 | 174,040 |
| History of Mexico | 0 | - | 4.58 | 15,245 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.91 | 53,218 |
| States of Brazil | 0 | - | 4.98 | 86,784 |
| Central American Countries | 0 | - | 4.98 | 155,323 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,422 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,093 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,615 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,026 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,267 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,207 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,639 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,156 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,781 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,975 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,993 |
| Slavic Languages | 0 | - | 4.68 | 54,082 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,865 |
| Most Common High School Mascots | 0 | - | 4.47 | 31,894 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,415 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,391 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,355 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,983 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,823 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,463 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,617 |
| Famous Caribbean People | 0 | - | 4.37 | 12,574 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,956 |
| Territories of the United States | 0 | - | 4.79 | 52,217 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,441 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,797 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,857 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,570 |
| New York City Geography | 0 | - | 4.42 | 32,983 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,311 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,441 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,765 |
| Top World Languages | 0 | - | 4.92 | 815,361 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,645 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,083 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,022 |
| Australian Capitals | 0 | - | 4.92 | 62,615 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,437 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,298 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,924 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,774 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,664 |
| Asia Map Quiz | 0 | - | 4.99 | 908,977 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,709 |
| Countries by Official Language | 0 | - | 4.95 | 193,163 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,827 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,157 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,681 |
| Countries in their Native Language | 0 | - | 4.99 | 196,994 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,161 |
| Countries of Africa | 0 | - | 5.00 | 2,515,042 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,045 |
| African East Coast | 0 | - | 4.96 | 95,301 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,191 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,048 |
| Australia Map Quiz | 0 | - | 4.94 | 342,911 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,212 |
| Pixelated Americas Map | 0 | - | 4.39 | 46,901 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,647 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,232 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,501 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,154 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,155 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,664 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,554 |
| 75 Americans Named John | 0 | - | 4.41 | 23,842 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,858 |
| New York True or False? | 0 | - | 4.53 | 33,721 |
| The Most Recent... United States | 0 | - | 4.45 | 18,335 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,389 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,847 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,469 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,958 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,246 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,475 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,434 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,473 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,221 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,032 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,682 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,041 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,222 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,653 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,382 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,543 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,536 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,823 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,639 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,994 |
| The Only European Country ... | 0 | - | 4.91 | 214,588 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,995 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,624 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,926 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,848 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,312 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,115 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,405 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,780 |
| German-Speaking Countries | 0 | - | 4.89 | 123,610 |
| Italian Name Translation | 0 | - | 4.81 | 45,575 |
| French-Speaking Countries | 0 | - | 4.85 | 269,274 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,145 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,545 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,213 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,942 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,753 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,510 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,686 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,466 |
| African Island Countries | 0 | - | 4.96 | 100,994 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,103 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,860 |
| Australian States and Territories | 0 | - | 4.96 | 141,162 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,080 |
| Australia True or False | 0 | - | 4.87 | 56,594 |
| Flags of North and South America | 0 | - | 4.99 | 368,920 |
| South American Physical Geography | 0 | - | 4.58 | 18,292 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,619 |
| Florida True or False? | 0 | - | 4.48 | 28,570 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,026 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,661 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,999 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,608 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,422 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,211 |
| US States with the Most Executions | 0 | - | 4.51 | 26,361 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,956 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,710 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,100 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,053 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,055 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,621 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,694 |
| Which Canadian Province? | 0 | - | 4.75 | 9,662 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,117 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,602 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,645 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,266 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,052 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,072 |
| Celtic Nations | 0 | - | 4.69 | 46,843 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,844 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,954 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,531 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,938 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,640 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,985 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,750 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,846 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,985 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,521 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,374 |
| Slavic Countries | 0 | - | 4.96 | 111,062 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,131 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,660 |
| Languages of Spain | 0 | - | 4.36 | 23,195 |
| Counties of England | 0 | - | 4.97 | 791,088 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,383 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,416 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,495 |
