| Countries of Africa | 0 | - | 5.00 | 2,555,853 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,581 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,724 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,267 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,084 |
| African Island Countries | 0 | - | 4.96 | 102,344 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,461 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,202 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,380 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,170 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,041 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,411 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,352 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,581 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,993 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,539 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,584 |
| The Only African Country ... | 0 | - | 4.99 | 129,579 |
| The Only American Country ... | 0 | - | 4.92 | 122,135 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,348 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,080 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,238 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,727 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,497 |
| 10 Easternmost Countries in Africa | 0 | - | 4.97 | 24,937 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,206 |
| US States Quiz | 0 | - | 5.00 | 16,977,499 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,773 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,450 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,229 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,750 |
| Tanzania Country Quiz | 0 | - | 4.91 | 33,225 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,775 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,963 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,516 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,407 |
| States of Mexico | 0 | - | 4.96 | 177,918 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,451 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,919 |
| Belize Country Quiz | 0 | - | 4.85 | 21,070 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,948 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,513 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,902 |
| The Only European Country ... | 0 | - | 4.91 | 218,644 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,675 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,580 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,337 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,877 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,034 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,897 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,679 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,792 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,096 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,888 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,096 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 69,209 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,954 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,497 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,787 |
| Pixelated United States Map | 0 | - | 4.88 | 94,737 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,945 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,162 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,179 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,224 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,223 |
| U.S. States By Population | 0 | - | 4.92 | 154,066 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,121 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,826 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,496 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,027 |
| Botswana Country Quiz | 0 | - | 4.90 | 22,632 |
| Mauritius Country Quiz | 0 | - | 4.83 | 22,371 |
| Liberia Country Quiz | 0 | - | 4.85 | 21,997 |
| US States with an Empty Map | 0 | - | 5.00 | 628,020 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,645 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,514 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,753 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,356 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,877 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,342 |
| African Capitals by Map | 0 | - | 4.99 | 141,878 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,564 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,282 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,661 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,534 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,475 |
| Countries of the Middle East | 0 | - | 4.96 | 202,418 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,054 |
| Slavic Countries | 0 | - | 4.96 | 112,274 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,132 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,074 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,684 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,214 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,386 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,441 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,909 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,707 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,931 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,804 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,061 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,540 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,193 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,842 |
| Canada Country Quiz | 0 | - | 4.55 | 132,963 |
| United States Country Quiz | 0 | - | 4.43 | 102,106 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,891 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,459 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,549 |
| Flags of North and South America | 0 | - | 4.99 | 376,350 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,368 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,357 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,971 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,914 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,188 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,036 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,441 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,647 |
| Random African Flag to Country | 0 | - | 4.88 | 75,549 |
| Countries Closest to Egypt | 0 | - | 4.83 | 101,501 |
| Sudan Country Quiz | 0 | - | 4.91 | 27,821 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,365 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,767 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,380 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,120 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,734 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,172 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,180 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,875 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,769 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,790 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,401 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,006 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,439 |
| Monarchies of Europe | 0 | - | 4.90 | 98,754 |
| Monarchies of Asia | 0 | - | 4.97 | 71,445 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,233 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,251 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,400 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,356 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,716 |
| European Countries with One Border | 0 | - | 4.97 | 183,623 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,385 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,362 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,694 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,374 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,711 |
| Ten Highest HDI Countries in Africa | 0 | - | 4.70 | 67,932 |
| Countries That Border Russia | 0 | - | 4.98 | 464,214 |
| Countries Bordering France | 0 | - | 4.83 | 404,620 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,583 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,721 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,781 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,225 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,326 |
| Europe Map Quiz | 0 | - | 5.00 | 4,783,727 |
| O Canada Lyrics | 0 | - | 4.47 | 51,052 |
| UK Immigration by Country | 0 | - | 4.94 | 141,575 |
| Central American Countries | 0 | - | 4.98 | 157,207 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,451 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,714 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,862 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,022 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,506 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,923 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,970 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,529 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,719 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,282 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,770 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,688 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,696 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,398 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,853 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,529 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,727 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,670 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,853 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,176 |
| Germany Country Quiz | 0 | - | 4.82 | 158,707 |
| Russia Country Quiz | 0 | - | 4.83 | 115,225 |
| Japan Country Quiz | 0 | - | 4.93 | 143,204 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,818 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,685 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,548 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,052 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,536 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,901 |
| Palau Country Quiz | 0 | - | 4.90 | 23,131 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,505 |
| States of Brazil | 0 | - | 4.97 | 89,439 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,678 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,103 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,816 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,145 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,909 |
| Countries with Megacities | 0 | - | 4.99 | 266,629 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,615 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,983 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,917 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,085 |
