| One Border Countries | 0 | - | 4.98 | 466,476 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,814,123 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,069 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,567 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,704 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,721 |
| Countries with Two Borders | 0 | - | 4.99 | 149,446 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,021 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,689 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,557 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,014 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,380 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,805 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,657 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,669 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,847 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,103 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,345 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,880 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,391 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,740 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,923 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,460 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,304 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,782 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,679 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,556 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,710 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,179 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,174,009 |
| Landlocked Countries | 0 | - | 4.99 | 416,792 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 92,530 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,453 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,001 |
| Himalayan Countries | 0 | - | 4.95 | 136,554 |
| Andean Countries | 0 | - | 4.95 | 83,514 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,777 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,045 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,450 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,042 |
| Danube Countries | 0 | - | 4.97 | 71,443 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,239 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,860 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,177 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,163 |
| European Landlocked Countries | 0 | - | 4.99 | 146,142 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,792 |
| Countries with the Most Species | 0 | - | 4.99 | 101,877 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,918 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,339 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,517 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,167 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,818 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,201 |
| Countries in the Alps | 0 | - | 4.86 | 117,350 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,918 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,933 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,262 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,755 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,839 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,269 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,002 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,001 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,817 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,344 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,371 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,208 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,739 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,012 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,019 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,743 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,906 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,436 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,265 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,072 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,608 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,839 |
| Largest Countries By Category | 0 | - | 4.97 | 157,285 |
| Countries by Countries | 0 | - | 4.96 | 62,602 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,082 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,095 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,992 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,869 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,881 |
| Island Countries | 0 | - | 4.99 | 708,870 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,509 |
| Northernmost Countries | 0 | - | 4.99 | 359,435 |
| Countries of South America | 0 | - | 5.00 | 919,859 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,039 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,156 |
| "Land" Countries | 0 | - | 4.98 | 334,655 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,291 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,762 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,877 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,049 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,428 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,528 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,069 |
| Random Countries by Borders | 0 | - | 4.99 | 81,986 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,334 |
| Countries with Megacities | 0 | - | 4.99 | 249,054 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,183 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,569 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,521 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,541 |
| Countries by Official Language | 0 | - | 4.95 | 194,040 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,672 |
| Countries in their Native Language | 0 | - | 4.99 | 197,661 |
| Independence from Whom | 0 | - | 4.99 | 210,840 |
| Subdivisions by Country | 0 | - | 4.86 | 50,205 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,357 |
| Megadiverse Countries | 0 | - | 4.96 | 134,550 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,860 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,082 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,635 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,949 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,456 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,231 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,615 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,379 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,808 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,244 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,585 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,690 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,650 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,867 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,212 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,604 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,075 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,681 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,409 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,739 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,286 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,479 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,641 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,156 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,648 |
| Widest Countries East to West | 0 | - | 4.92 | 129,148 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,332 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,671 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,927 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,961 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,987 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,370 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,112 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,679 |
| Countries with Double Letters | 0 | - | 4.96 | 94,168 |
| Countries that End in N | 0 | - | 4.95 | 166,483 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,622 |
| Countries with Six Letters | 0 | - | 4.93 | 211,163 |
| Countries with W | 0 | - | 4.97 | 158,840 |
| Countries with Z | 0 | - | 4.98 | 288,811 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,056 |
| Countries That End in U | 0 | - | 4.95 | 119,941 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,181 |
| Countries that End in O | 0 | - | 4.92 | 158,878 |
| Countries that End in R | 0 | - | 4.87 | 118,519 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,295 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,791 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,758 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,821 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,398 |
| Countries That End in Y | 0 | - | 4.90 | 185,440 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,856 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,103 |
| Countries that End in I | 0 | - | 4.94 | 134,681 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,714 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,418 |
| Countries That End in NIA | 0 | - | 4.92 | 109,298 |
| Countries That End in BIA | 0 | - | 4.93 | 148,576 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,435 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,780 |
| Countries That End in RIA | 0 | - | 4.93 | 126,354 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,343 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,102 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,880 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,214 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,797 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,150 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,450 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,952 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,849 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,007 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,220 |
| Countries that End in L | 0 | - | 4.94 | 156,304 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,941 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,070 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,715 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,572 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,627 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,341 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,820 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,345 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,838 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,265 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,053 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,874 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,298 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,526 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,525 |
