| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,846,535 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,718 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,539 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,649 |
| One Border Countries | 0 | - | 4.98 | 471,673 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,649,984 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,864 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,616 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,032 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,979 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,886 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,694 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,229 |
| Countries with Two Borders | 0 | - | 4.99 | 150,345 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,741 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,469 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,662 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,775 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,871 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,361 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,859 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,844 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,442 |
| Longest Border by Country #3 | 0 | - | 4.99 | 79,906 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,831,966 |
| Landlocked Countries | 0 | - | 4.99 | 425,062 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,360 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,800,281 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,879 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,265 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,598 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,700 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,836 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,912 |
| Himalayan Countries | 0 | - | 4.93 | 139,976 |
| Andean Countries | 0 | - | 4.94 | 85,291 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,449 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,795 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,022 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,317 |
| Danube Countries | 0 | - | 4.97 | 72,312 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,479 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,754 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,975 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,466 |
| European Landlocked Countries | 0 | - | 4.99 | 147,528 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,185 |
| Countries with the Most Species | 0 | - | 4.99 | 103,519 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,315 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,741 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,850 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,787 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,521 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,954 |
| Countries in the Alps | 0 | - | 4.87 | 118,685 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,474 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,731 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,915 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,956 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,877 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,185 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,314 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,809 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,372 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,116 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,820 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,691 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,496 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,733 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,826 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,676 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,561 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,686 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,581 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,438 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,984 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,470 |
| Largest Countries By Category | 0 | - | 4.97 | 158,758 |
| Countries by Countries | 0 | - | 4.96 | 63,578 |
| Pixelated World Map | 0 | - | 5.00 | 144,030 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,182 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,378 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,653 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,494 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,836 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,779 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,351 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,036 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,371 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,241 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,123 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,917 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,486 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,342 |
| Island Countries | 0 | - | 4.99 | 712,307 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,038 |
| Northernmost Countries | 0 | - | 4.99 | 363,704 |
| Countries of South America | 0 | - | 5.00 | 931,764 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,231 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,887,197 |
| "Land" Countries | 0 | - | 4.98 | 338,246 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,771 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,216 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,455 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,141 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,332 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,643 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,294 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,889 |
| Random Countries by Borders | 0 | - | 4.99 | 83,012 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,989 |
| Countries with Megacities | 0 | - | 4.99 | 266,785 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,685 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,021 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,994 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,143 |
| Countries by Official Language | 0 | - | 4.95 | 195,883 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,479 |
| Countries in their Native Language | 0 | - | 4.99 | 199,645 |
| Independence from Whom | 0 | - | 4.99 | 212,925 |
| Subdivisions by Country | 0 | - | 4.87 | 50,590 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,344 |
| Megadiverse Countries | 0 | - | 4.96 | 135,234 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,852 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,508 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,414 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,209 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,515 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,808 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,033 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,794 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,242 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,403 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,345 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,408 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,122 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,555 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,663 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,187 |
| World Map Quiz | 0 | - | 4.81 | 65,587 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,936 |
| Countries by Founding Story | 0 | - | 4.95 | 77,749 |
| Countries by Road Signs | 0 | - | 4.98 | 54,305 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,133 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,001 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,489 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,407 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,358 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,467 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,669 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,651 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,516 |
| Widest Countries East to West | 0 | - | 4.92 | 130,391 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,581 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,183 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,493 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,019 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,931 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,417 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,479 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,882 |
| Countries with Double Letters | 0 | - | 4.96 | 96,953 |
| Countries that End in N | 0 | - | 4.94 | 171,820 |
| Countries with Five Letters | 0 | - | 4.96 | 283,606 |
| Countries with Six Letters | 0 | - | 4.94 | 214,330 |
| Countries with W | 0 | - | 4.96 | 160,852 |
| Countries with Z | 0 | - | 4.98 | 292,306 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,212 |
| Countries That End in U | 0 | - | 4.95 | 121,134 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,015 |
| Countries that End in O | 0 | - | 4.92 | 160,038 |
| Countries that End in R | 0 | - | 4.87 | 119,146 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,902 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,734 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,086 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,770 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,706 |
| Countries That End in Y | 0 | - | 4.91 | 186,061 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,385 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,209 |
| Countries that End in I | 0 | - | 4.94 | 135,281 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,549 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,021 |
| Countries That End in NIA | 0 | - | 4.92 | 110,016 |
| Countries That End in BIA | 0 | - | 4.93 | 149,535 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,466 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,729 |
| Countries That End in RIA | 0 | - | 4.93 | 127,025 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,331 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,447 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,105 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,543 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,113 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,775 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,290 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,526 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,847 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,620 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,656 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,351 |
