| Metals of Antiquity | 0 | - | 4.94 | 92,810 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,802 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,519 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,129 |
| Elements Named for Countries | 0 | - | 4.52 | 24,341 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,081 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,147 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,743 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,277 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,461 |
| Countries with Glaciers | 0 | - | 4.97 | 104,581 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,546 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,185 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 102,990 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 179,249 |
| Monarchies Bordering Monarchies | 0 | - | 4.85 | 59,919 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,785 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,166 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,849 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,139 |
| European Countries with One Border | 0 | - | 4.97 | 181,443 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 177,959 |
| Random Countries by Borders | 0 | - | 4.99 | 81,572 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,827 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,547 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,847,714 |
| Landlocked Countries | 0 | - | 4.99 | 412,840 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,292 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,802 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,831 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,123 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,414 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,329 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 377,923 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,046 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,102 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,455 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,835 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,203 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,218 |
| Himalayan Countries | 0 | - | 4.95 | 135,040 |
| Andean Countries | 0 | - | 4.94 | 82,654 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,077 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,974 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,748 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,454 |
| Danube Countries | 0 | - | 4.97 | 70,989 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,633 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,278 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,186 |
| European Landlocked Countries | 0 | - | 4.99 | 145,662 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,041 |
| Countries with the Most Species | 0 | - | 4.99 | 95,181 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,186 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,172 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,331 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,906 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,505 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,862 |
| Countries in the Alps | 0 | - | 4.87 | 116,678 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,461 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,058 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,935 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,317 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,061 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,933 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,463 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,682 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,204 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,964 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,357 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,667 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,669 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,852 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,561 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,198 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,658 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,809 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,348 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,531 |
| Largest Countries By Category | 0 | - | 4.97 | 156,599 |
| Countries by Countries | 0 | - | 4.96 | 62,159 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,203 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,930 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,648 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,369 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,597 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,636 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,869 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,714 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,198 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,181 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,771 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,475 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,008 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,125 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,639 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,278 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,325 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,623 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,454 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,475 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,211 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,124 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,539 |
| Longest International Borders | 0 | - | 4.99 | 263,357 |
| Countries with Three Borders | 0 | - | 4.96 | 36,128 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,550 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,599 |
| Demonym of Every Country | 0 | - | 4.91 | 58,560 |
| Elements by Picture | 0 | - | 4.27 | 69,483 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,972 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,775 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,813 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,962 |
| Island Countries | 0 | - | 4.99 | 707,212 |
| Countries Richer Than Their Neighbors | 0 | - | 4.46 | 72,137 |
| Least-Forested Countries | 0 | - | 4.53 | 64,861 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,720 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,668 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,270 |
| Northernmost Countries | 0 | - | 4.99 | 357,214 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,441 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,032 |
| Countries of South America | 0 | - | 5.00 | 913,301 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,487 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,844,984 |
| "Land" Countries | 0 | - | 4.98 | 333,403 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 354,495 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 412,410 |
| Top World Languages | 0 | - | 4.92 | 811,893 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,056 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,922 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,104 |
| Europe Map Quiz | 0 | - | 5.00 | 4,726,949 |
| All Country Flags of the World | 0 | - | 5.00 | 3,593,637 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,034 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,122 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,200 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,369 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,400 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,993 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,850 |
| Countries with Megacities | 0 | - | 4.99 | 246,145 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,768 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,727 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,235 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,662 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,117 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,564 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,804 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,559 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,507 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,473 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,203 |
| Countries by Capital City | 0 | - | 5.00 | 66,445 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,218 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,802 |
| World Capitals by Proximity | 0 | - | 4.91 | 327,922 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,332 |
| Moved Capital Cities | 0 | - | 4.96 | 73,505 |
| Countries by Official Language | 0 | - | 4.95 | 192,578 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,851 |
| Countries in their Native Language | 0 | - | 4.99 | 196,457 |
| Independence from Whom | 0 | - | 4.99 | 209,444 |
| Subdivisions by Country | 0 | - | 4.86 | 50,032 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,578 |
| Megadiverse Countries | 0 | - | 4.97 | 133,827 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,641 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,875 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,370 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,832 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,529 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,583 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,058 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,173 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,711 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,365 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,359 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,423 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,441 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,977 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,326 |
| World Map Quiz | 0 | - | 4.81 | 63,349 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,187 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,209 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,408 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,141 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,874 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,844 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,489 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,757 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,956 |
