| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,821,573 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,922 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,824 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,004 |
| One Border Countries | 0 | - | 4.98 | 467,519 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,613,616 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,536 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,679 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,334 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,275 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,208 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,872 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,086 |
| Countries with Two Borders | 0 | - | 4.99 | 149,637 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,195 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,868 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,734 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,173 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,505 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,959 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,715 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,708 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,975 |
| Longest Border by Country #3 | 0 | - | 4.99 | 79,426 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,313,569 |
| Landlocked Countries | 0 | - | 4.99 | 418,592 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,818 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,754,943 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,489 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,180 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,676 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,954 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,130 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,808 |
| Himalayan Countries | 0 | - | 4.94 | 137,269 |
| Andean Countries | 0 | - | 4.95 | 83,848 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,124 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,519 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,777 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,299 |
| Danube Countries | 0 | - | 4.97 | 71,615 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,497 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,017 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,582 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,651 |
| European Landlocked Countries | 0 | - | 4.99 | 146,733 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,080 |
| Countries with the Most Species | 0 | - | 4.99 | 102,868 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,215 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,422 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,575 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,280 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,960 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,334 |
| Countries in the Alps | 0 | - | 4.87 | 117,632 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,096 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,307 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,387 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,950 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,053 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,422 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,238 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,153 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,945 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,521 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,457 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,320 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,897 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,166 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,181 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,125 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,040 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,554 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,476 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,229 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,145 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,971 |
| Largest Countries By Category | 0 | - | 4.97 | 157,580 |
| Countries by Countries | 0 | - | 4.96 | 62,807 |
| Pixelated World Map | 0 | - | 5.00 | 143,129 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,159 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,148 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,464 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,455 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,272 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,410 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,620 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,294 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,674 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,444 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,854 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,715 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,507 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,941 |
| Island Countries | 0 | - | 4.99 | 709,613 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,728 |
| Northernmost Countries | 0 | - | 4.99 | 360,339 |
| Countries of South America | 0 | - | 5.00 | 922,533 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,510 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,494 |
| "Land" Countries | 0 | - | 4.98 | 335,722 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,293 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,034 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,925 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,600 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,971 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,239 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,790 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,420 |
| Random Countries by Borders | 0 | - | 4.99 | 82,260 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,924 |
| Countries with Megacities | 0 | - | 4.99 | 257,445 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,782 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,929 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,073 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,933 |
| Countries by Official Language | 0 | - | 4.95 | 194,585 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,464 |
| Countries in their Native Language | 0 | - | 4.99 | 198,130 |
| Independence from Whom | 0 | - | 4.99 | 211,241 |
| Subdivisions by Country | 0 | - | 4.86 | 50,273 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,646 |
| Megadiverse Countries | 0 | - | 4.96 | 134,746 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,508 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,164 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,733 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,007 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,673 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,360 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,925 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,467 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,975 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,893 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,695 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,971 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,757 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,124 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,308 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,111 |
| World Map Quiz | 0 | - | 4.81 | 64,469 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,467 |
| Countries by Founding Story | 0 | - | 4.95 | 77,038 |
| Countries by Road Signs | 0 | - | 4.98 | 53,626 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,441 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,895 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,604 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,259 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,486 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,648 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,800 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,247 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,256 |
| Widest Countries East to West | 0 | - | 4.92 | 129,339 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,376 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,924 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,983 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,490 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,180 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,518 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,222 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,723 |
| Countries with Double Letters | 0 | - | 4.97 | 95,036 |
| Countries that End in N | 0 | - | 4.95 | 169,889 |
| Countries with Five Letters | 0 | - | 4.96 | 279,828 |
| Countries with Six Letters | 0 | - | 4.94 | 212,416 |
| Countries with W | 0 | - | 4.97 | 159,492 |
| Countries with Z | 0 | - | 4.98 | 289,736 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,686 |
| Countries That End in U | 0 | - | 4.95 | 120,388 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,707 |
| Countries that End in O | 0 | - | 4.92 | 159,179 |
| Countries that End in R | 0 | - | 4.87 | 118,722 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,501 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,266 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,073 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,062 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,644 |
| Countries That End in Y | 0 | - | 4.90 | 185,637 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,184 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,391 |
| Countries that End in I | 0 | - | 4.94 | 134,848 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,039 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,562 |
| Countries That End in NIA | 0 | - | 4.92 | 109,499 |
| Countries That End in BIA | 0 | - | 4.93 | 148,818 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,677 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,024 |
| Countries That End in RIA | 0 | - | 4.93 | 126,513 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,598 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,609 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,179 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,529 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,081 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,295 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,652 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,209 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,093 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,181 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,796 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,506 |
