| One Border Countries | 0 | - | 4.98 | 467,196 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,819,117 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,204 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,077 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,823 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,976 |
| Countries with Two Borders | 0 | - | 4.99 | 149,569 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,142 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,820 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,684 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,125 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,472 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,910 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,694 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,698 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,936 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,593 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,441 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,081 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,589 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,884 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,065 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,613 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,398 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,835 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,834 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,748 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,931 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,256 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,266,404 |
| Landlocked Countries | 0 | - | 4.99 | 417,989 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 92,612 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,750,659 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,523 |
| Himalayan Countries | 0 | - | 4.94 | 137,012 |
| Andean Countries | 0 | - | 4.95 | 83,728 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,973 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,340 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,647 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,222 |
| Danube Countries | 0 | - | 4.97 | 71,560 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,407 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,974 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,472 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,523 |
| European Landlocked Countries | 0 | - | 4.99 | 146,660 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,993 |
| Countries with the Most Species | 0 | - | 4.99 | 102,706 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,127 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,388 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,554 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,246 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,912 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,295 |
| Countries in the Alps | 0 | - | 4.87 | 117,538 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,035 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,184 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,354 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,885 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,988 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,380 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,155 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,108 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,912 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,471 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,431 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,289 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,850 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,115 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,138 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,989 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,992 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,516 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,400 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,813 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,985 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,924 |
| Largest Countries By Category | 0 | - | 4.97 | 157,489 |
| Countries by Countries | 0 | - | 4.96 | 62,752 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,129 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,236 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,114 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,344 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,604 |
| Island Countries | 0 | - | 4.99 | 709,349 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,982 |
| Northernmost Countries | 0 | - | 4.99 | 360,047 |
| Countries of South America | 0 | - | 5.00 | 921,714 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,511 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,863,423 |
| "Land" Countries | 0 | - | 4.98 | 335,560 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,370 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,588 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,944 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,183 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,452 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,586 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,119 |
| Random Countries by Borders | 0 | - | 4.99 | 82,195 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,692 |
| Countries with Megacities | 0 | - | 4.99 | 249,801 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,526 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,793 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,860 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,778 |
| Countries by Official Language | 0 | - | 4.95 | 194,458 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,284 |
| Countries in their Native Language | 0 | - | 4.99 | 198,016 |
| Independence from Whom | 0 | - | 4.99 | 211,129 |
| Subdivisions by Country | 0 | - | 4.86 | 50,252 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,564 |
| Megadiverse Countries | 0 | - | 4.96 | 134,699 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,152 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,146 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,701 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,989 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,602 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,314 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,833 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,447 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,929 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,648 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,661 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,887 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,727 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,061 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,280 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,934 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,314 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,826 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,547 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,072 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,430 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,602 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,748 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,214 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,211 |
| Widest Countries East to West | 0 | - | 4.92 | 129,277 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,367 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,838 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,969 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,446 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,122 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,466 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,195 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,707 |
| Countries with Double Letters | 0 | - | 4.97 | 94,896 |
| Countries that End in N | 0 | - | 4.95 | 169,481 |
| Countries with Five Letters | 0 | - | 4.96 | 278,401 |
| Countries with Six Letters | 0 | - | 4.94 | 212,238 |
| Countries with W | 0 | - | 4.97 | 159,375 |
| Countries with Z | 0 | - | 4.98 | 289,581 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,584 |
| Countries That End in U | 0 | - | 4.95 | 120,338 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,590 |
| Countries that End in O | 0 | - | 4.92 | 159,136 |
| Countries that End in R | 0 | - | 4.87 | 118,676 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,464 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,167 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,000 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,997 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,587 |
| Countries That End in Y | 0 | - | 4.90 | 185,599 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,092 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,309 |
| Countries that End in I | 0 | - | 4.94 | 134,814 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,933 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,526 |
| Countries That End in NIA | 0 | - | 4.92 | 109,447 |
| Countries That End in BIA | 0 | - | 4.93 | 148,750 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,615 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,965 |
| Countries That End in RIA | 0 | - | 4.93 | 126,458 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,549 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,462 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,098 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,434 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,007 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,263 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,591 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,143 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,034 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,147 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,413 |
| Countries that End in L | 0 | - | 4.94 | 156,468 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,623 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,137 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,787 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,661 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,711 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,575 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,014 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,521 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,987 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,461 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,479 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,912 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,336 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,571 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,599 |
