| Countries of Africa | 0 | - | 5.00 | 2,555,813 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,579 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,718 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,266 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,080 |
| African Island Countries | 0 | - | 4.96 | 102,343 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,459 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,198 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,379 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,167 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,038 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,409 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,351 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,579 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,990 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,535 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,582 |
| The Only African Country ... | 0 | - | 4.99 | 129,578 |
| The Only American Country ... | 0 | - | 4.92 | 122,132 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,347 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,080 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,237 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,726 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,485 |
| 10 Easternmost Countries in Africa | 0 | - | 4.97 | 24,931 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,170 |
| US States Quiz | 0 | - | 5.00 | 16,977,186 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,771 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,441 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,223 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,748 |
| Tanzania Country Quiz | 0 | - | 4.91 | 33,224 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,774 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,963 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,515 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,406 |
| States of Mexico | 0 | - | 4.96 | 177,911 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,449 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,910 |
| Belize Country Quiz | 0 | - | 4.85 | 21,070 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,941 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,511 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,893 |
| The Only European Country ... | 0 | - | 4.91 | 218,640 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,667 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,580 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,330 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,877 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 93,955 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,892 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,679 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,791 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,096 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,887 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,096 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 69,207 |
| 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 | 94,736 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,941 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,161 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,175 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,218 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,218 |
| U.S. States By Population | 0 | - | 4.92 | 154,063 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,118 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,825 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,495 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,024 |
| Botswana Country Quiz | 0 | - | 4.90 | 22,632 |
| Mauritius Country Quiz | 0 | - | 4.83 | 22,371 |
| Liberia Country Quiz | 0 | - | 4.85 | 21,996 |
| US States with an Empty Map | 0 | - | 5.00 | 628,012 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,637 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,512 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,743 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,355 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,876 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,341 |
| African Capitals by Map | 0 | - | 4.99 | 141,875 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,560 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,280 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,661 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,524 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,465 |
| Countries of the Middle East | 0 | - | 4.96 | 202,416 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,053 |
| Slavic Countries | 0 | - | 4.96 | 112,272 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,131 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,046 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,680 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,213 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,385 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,440 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,909 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,702 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,930 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,802 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,061 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,539 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,192 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,842 |
| Canada Country Quiz | 0 | - | 4.55 | 132,959 |
| United States Country Quiz | 0 | - | 4.43 | 102,104 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,891 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,457 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,541 |
| Flags of North and South America | 0 | - | 4.99 | 376,345 |
| 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 | 96,909 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,187 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,034 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,410 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,642 |
| Random African Flag to Country | 0 | - | 4.88 | 75,547 |
| 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 | 210,361 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,765 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,376 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,120 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,732 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,172 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,174 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,870 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,768 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,788 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,399 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,005 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,436 |
| Monarchies of Europe | 0 | - | 4.90 | 98,753 |
| Monarchies of Asia | 0 | - | 4.97 | 71,445 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,231 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,249 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,397 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,355 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,714 |
| European Countries with One Border | 0 | - | 4.97 | 183,619 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,384 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,361 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,691 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,372 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,693 |
| Ten Highest HDI Countries in Africa | 0 | - | 4.70 | 67,932 |
| Countries That Border Russia | 0 | - | 4.98 | 464,209 |
| Countries Bordering France | 0 | - | 4.83 | 404,616 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,576 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,720 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,781 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,224 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,326 |
| Europe Map Quiz | 0 | - | 5.00 | 4,783,673 |
| O Canada Lyrics | 0 | - | 4.47 | 51,052 |
| UK Immigration by Country | 0 | - | 4.94 | 141,569 |
| Central American Countries | 0 | - | 4.98 | 157,204 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,428 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,711 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,861 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,021 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,503 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,910 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,969 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,529 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,717 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,282 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,765 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,687 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,695 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,397 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,851 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,529 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,726 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,669 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,852 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,169 |
| Germany Country Quiz | 0 | - | 4.82 | 158,706 |
| Russia Country Quiz | 0 | - | 4.83 | 115,224 |
| Japan Country Quiz | 0 | - | 4.93 | 143,201 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,816 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,685 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,541 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,051 |
| 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 | 48,504 |
| States of Brazil | 0 | - | 4.97 | 89,436 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,677 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,103 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,791 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,138 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,905 |
| Countries with Megacities | 0 | - | 4.99 | 266,622 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,612 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,981 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,912 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,080 |
