| Countries of South America with an Empty Map | 0 | - | 4.94 | 102,305 |
| South America Map Quiz | 0 | - | 5.00 | 1,516,923 |
| Word Chain - South America | 0 | - | 4.50 | 23,468 |
| United States Map Quiz | 0 | - | 4.98 | 4,097,822 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 111,177 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 141,383 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 123,495 |
| Countries of North America Quiz | 0 | - | 5.00 | 981,805 |
| North America Map Quiz | 0 | - | 4.98 | 233,755 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 112,431 |
| Canada Provinces and Territories | 0 | - | 5.00 | 325,345 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 619,758 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 53,074 |
| Famous People from South America | 0 | - | 4.15 | 21,351 |
| Central America and Caribbean Map Quiz | 0 | - | 4.88 | 891,281 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 54,429 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 92,245 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 58,710 |
| U.S. State Border Crossings | 0 | - | 4.96 | 88,083 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 234,870 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 72,625 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 70,872 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,712 |
| Uruguay Country Quiz | 0 | - | 4.83 | 30,759 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 90,616 |
| States of Mexico | 0 | - | 4.94 | 164,448 |
| History of Mexico | 0 | - | 4.58 | 15,023 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.91 | 49,710 |
| States of Brazil | 0 | - | 4.98 | 81,980 |
| Central American Countries | 0 | - | 4.98 | 151,011 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 125,879 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.89 | 26,318 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 48,462 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,177 |
| 10 Northernmost U.S. States | 0 | - | 4.89 | 80,399 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.94 | 156,364 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 175,247 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 122,065 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.84 | 67,949 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 84,299 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 65,001 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 517,805 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 262,430 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 208,396 |
| Canada Geography Trivia | 0 | - | 4.79 | 46,864 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 200,706 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 96,138 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 272,493 |
| Largest Caribbean Islands | 0 | - | 4.06 | 16,323 |
| Famous Caribbean People | 0 | - | 4.37 | 12,447 |
| Saintly Islands of the Caribbean | 0 | - | 4.30 | 23,522 |
| Territories of the United States | 0 | - | 4.78 | 51,408 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 38,304 |
| Most Mentioned Enemies of the USA | 0 | - | 4.75 | 171,230 |
| Major non-NATO U.S. Allies | 0 | - | 4.51 | 50,430 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 91,917 |
| Canada Immigration by Country | 0 | - | 4.51 | 61,082 |
| Europe Map Quiz | 0 | - | 5.00 | 4,643,568 |
| Africa Map Quiz | 0 | - | 5.00 | 2,070,722 |
| Oceania Map Quiz | 0 | - | 4.98 | 618,470 |
| Australian Capitals | 0 | - | 4.92 | 62,233 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 110,459 |
| Native American Tribes in the US | 0 | - | 4.70 | 24,923 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 66,802 |
| Official European Union Languages | 0 | - | 4.98 | 232,073 |
| European Countries in their Native Language | 0 | - | 4.99 | 153,844 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 416,918 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,419,963 |
| Asia Map Quiz | 0 | - | 4.99 | 879,295 |
| Countries of Africa | 0 | - | 5.00 | 2,428,919 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 42,778 |
| African East Coast | 0 | - | 4.96 | 92,617 |
| Western Africa Map Quiz | 0 | - | 4.97 | 70,470 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 47,715 |
| Australia Map Quiz | 0 | - | 4.94 | 337,709 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,027 |
| Pixelated Americas Map | 0 | - | 4.40 | 45,699 |
| Hispanic Last Names in the U.S. | 0 | - | 4.30 | 54,243 |
| South American Geography Quiz #2 | 0 | - | 4.68 | 38,714 |
| South American Geography Quiz #1 | 0 | - | 4.74 | 32,085 |
| U.S. Federal Holidays | 0 | - | 4.33 | 98,393 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 61,492 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,415 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.20 | 52,207 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.09 | 40,173 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 98,111 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.65 | 32,125 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 73,813 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 73,992 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 80,721 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 72,654 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 88,190 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 82,839 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.44 | 51,464 |
| Top 10 Most White U.S. States | 0 | - | 4.50 | 79,938 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 58,415 |
| Canadian Geography on the Map | 0 | - | 4.58 | 25,721 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 204,262 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 90,805 |
| Countries That Use the Euro | 0 | - | 4.97 | 96,798 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 356,734 |
| Europe Geography Decoder | 0 | - | 4.86 | 68,214 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 108,850 |
| The Only European Country ... | 0 | - | 4.92 | 205,039 |
| European Countries NOT in NATO | 0 | - | 4.88 | 54,965 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,845 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 92,755 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,357,669 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 96,754 |
| Flags of Africa Quiz | 0 | - | 5.00 | 441,131 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 211,867 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 113,346 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 157,412 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 132,402 |
| Top African Languages on a Map | 0 | - | 4.93 | 68,465 |
| African Island Countries | 0 | - | 4.96 | 98,349 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 238,026 |
| Australian States and Territories | 0 | - | 4.96 | 138,148 |
| Australian Immigration by Country | 0 | - | 4.82 | 76,264 |
| Australia True or False | 0 | - | 4.87 | 55,514 |
| Flags of North and South America | 0 | - | 4.99 | 344,703 |
| South American Physical Geography | 0 | - | 4.58 | 18,047 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,336 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,693 |
| U.S. History Multiple Choice #3 | 0 | - | 4.42 | 24,376 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.64 | 44,414 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 29,182 |
| U.S. States with Oldest Median Age | 0 | - | 4.32 | 41,695 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 43,570 |
| US States with the Most Executions | 0 | - | 4.51 | 26,194 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,495 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 46,454 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 39,532 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 35,584 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 23,628 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,220 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,285 |
| Bahamas Country Quiz | 0 | - | 4.63 | 18,742 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 41,376 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 22,760 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,165,725 |
| Celtic Nations | 0 | - | 4.70 | 46,374 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,295,259 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 188,730 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 147,619 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 209,566 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 84,707 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.85 | 85,392 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 303,193 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 156,216 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 63,466 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 85,495 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 124,098 |
| Slavic Countries | 0 | - | 4.96 | 108,721 |
| Germany Multiple Choice | 0 | - | 4.83 | 52,985 |
| Counties of England | 0 | - | 4.97 | 769,664 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 336,328 |
| Flags of Asia Quiz | 0 | - | 4.99 | 583,460 |
| East Asia Cities Map Quiz | 0 | - | 4.97 | 107,355 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 150,432 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 96,411 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 105,018 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 122,578 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 103,810 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 68,393 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 225,113 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 46,576 |
| Countries of the Middle East | 0 | - | 4.95 | 193,662 |
| Countries where Arabic is an Official Language | 0 | - | 4.84 | 54,243 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 103,148 |
| States of India | 0 | - | 4.94 | 182,580 |
| States of India Map Quiz | 0 | - | 4.90 | 24,602 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 56,663 |
| Nepal Country Quiz | 0 | - | 4.95 | 36,412 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 58,888 |
| African Great Lakes | 0 | - | 4.81 | 62,731 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,386 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 30,833 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 70,921 |
| The Only African Country ... | 0 | - | 4.98 | 126,502 |
| African Countries by a Single Clue | 0 | - | 4.92 | 66,915 |
| African Countries with the Most Christians | 0 | - | 4.93 | 73,351 |
| African Countries with the Most Muslims | 0 | - | 4.81 | 98,787 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 117,781 |
| Pixelated Africa Map | 0 | - | 4.98 | 96,443 |
| Countries Closest to Africa | 0 | - | 4.96 | 153,748 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 88,516 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.91 | 30,980 |
| Name a Valid African Country | 0 | - | 4.98 | 149,292 |
| Kenya Country Quiz | 0 | - | 4.86 | 33,716 |
| Tanzania Country Quiz | 0 | - | 4.90 | 32,125 |
| D.R. Congo Country Quiz | 0 | - | 4.86 | 38,240 |
| Flags of Oceania | 0 | - | 5.00 | 243,994 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.96 | 25,369 |
| Palau Country Quiz | 0 | - | 4.89 | 22,312 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 141,599 |
| Australia Country Quiz | 0 | - | 4.43 | 68,257 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 89,032 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 66,714 |
| Countries Closest to Australia | 0 | - | 4.99 | 164,119 |
