| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,797,503 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,226 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,061 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,223 |
| One Border Countries | 0 | - | 4.98 | 463,588 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,689 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,313 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,881 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,583 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,393 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,136 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,070 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,136 |
| Countries with Two Borders | 0 | - | 4.99 | 136,731 |
| Countries by Borders #2 | 0 | - | 4.96 | 135,285 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,068 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,035 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 114,572 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,101 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,412 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,503 |
| Bordering Countries Forming Words #2 | 0 | - | 4.96 | 32,531 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,328 |
| Longest Border by Country #3 | 0 | - | 4.99 | 78,936 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,853,614 |
| Landlocked Countries | 0 | - | 4.99 | 412,904 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,159 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,993 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,089 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,167 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,760 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,291 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,472 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,247 |
| Himalayan Countries | 0 | - | 4.95 | 135,064 |
| Andean Countries | 0 | - | 4.94 | 82,672 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,087 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,000 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,766 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,471 |
| Danube Countries | 0 | - | 4.97 | 71,003 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,639 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,460 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,294 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,202 |
| European Landlocked Countries | 0 | - | 4.99 | 145,670 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,056 |
| Countries with the Most Species | 0 | - | 4.99 | 95,187 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,202 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,175 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,334 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,909 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,513 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,870 |
| Countries in the Alps | 0 | - | 4.87 | 116,687 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,476 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,088 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,943 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,328 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,071 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,940 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,475 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,685 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,748 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,973 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,166 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,999 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,365 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,675 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,676 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,870 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,572 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,201 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,671 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,851 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,385 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,545 |
| Largest Countries By Category | 0 | - | 4.97 | 156,622 |
| Countries by Countries | 0 | - | 4.96 | 62,168 |
| Pixelated World Map | 0 | - | 5.00 | 141,915 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,224 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,934 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,608 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,810 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,399 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,007 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,661 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 102,995 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 138,818 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 51,622 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,042 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,839 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,007 |
| Island Countries | 0 | - | 4.99 | 707,246 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,383 |
| Northernmost Countries | 0 | - | 4.99 | 357,262 |
| Countries of South America | 0 | - | 5.00 | 913,414 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,694 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,249 |
| "Land" Countries | 0 | - | 4.98 | 333,428 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,857 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,114 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,295 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,138 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,585 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,121 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,131 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 86,111 |
| Random Countries by Borders | 0 | - | 4.99 | 81,575 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,868 |
| Countries with Megacities | 0 | - | 4.99 | 246,204 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,783 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,740 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,253 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,675 |
| Countries by Official Language | 0 | - | 4.95 | 192,588 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,877 |
| Countries in their Native Language | 0 | - | 4.99 | 196,476 |
| Independence from Whom | 0 | - | 4.99 | 209,471 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,585 |
| Megadiverse Countries | 0 | - | 4.97 | 133,833 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,655 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,876 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,373 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,836 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,547 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,939 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,593 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,178 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,715 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,386 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,365 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,430 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,446 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,607 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,979 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,351 |
| World Map Quiz | 0 | - | 4.81 | 63,360 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,224 |
| Countries by Founding Story | 0 | - | 4.95 | 76,446 |
| Countries by Road Signs | 0 | - | 4.98 | 52,977 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,158 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,879 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,855 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,515 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,770 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,966 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,172 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,880 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,256 |
| Widest Countries East to West | 0 | - | 4.92 | 128,525 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,081 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,520 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,627 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,517 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,949 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,032 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,552 |
| Countries with Double Letters | 0 | - | 4.97 | 93,222 |
| Countries that End in N | 0 | - | 4.94 | 156,288 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,493 |
| Countries with Six Letters | 0 | - | 4.93 | 210,194 |
| Countries with W | 0 | - | 4.97 | 158,101 |
| Countries with Z | 0 | - | 4.98 | 287,425 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,431 |
| Countries That End in U | 0 | - | 4.95 | 119,448 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,351 |
| Countries that End in O | 0 | - | 4.92 | 158,478 |
| Countries that End in R | 0 | - | 4.86 | 118,206 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,811 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,861 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,185 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,383 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,569 |
| Countries That End in Y | 0 | - | 4.90 | 185,155 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,178 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,553 |
| Countries that End in I | 0 | - | 4.94 | 134,316 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,021 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,144 |
| Countries That End in NIA | 0 | - | 4.92 | 108,931 |
| Countries That End in BIA | 0 | - | 4.92 | 147,612 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,972 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,408 |
| Countries That End in RIA | 0 | - | 4.93 | 126,012 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,920 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,981 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,433 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,810 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,244 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,870 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,030 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,552 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,393 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,768 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,016 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,688 |
