| One Border Countries | 0 | - | 4.98 | 472,178 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,850,398 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,071 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,142 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,776 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,425 |
| Countries with Two Borders | 0 | - | 4.99 | 150,410 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,822 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,573 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,767 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,845 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,906 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,423 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,882 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,863 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,504 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,759 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,936 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,437 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,738 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,795 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,943 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,476 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,330 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,161 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,833 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,587 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,748 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,834 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,912,999 |
| Landlocked Countries | 0 | - | 4.99 | 426,414 |
| Smallest Countries Bordering Each Other | 0 | - | 4.55 | 93,181 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,304 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,497 |
| Himalayan Countries | 0 | - | 4.93 | 140,441 |
| Andean Countries | 0 | - | 4.94 | 85,586 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,731 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,179 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,291 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,533 |
| Danube Countries | 0 | - | 4.97 | 72,458 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,670 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,894 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,240 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,715 |
| European Landlocked Countries | 0 | - | 4.99 | 147,655 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,377 |
| Countries with the Most Species | 0 | - | 4.99 | 103,598 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,486 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,788 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,910 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,871 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,611 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,061 |
| Countries in the Alps | 0 | - | 4.87 | 118,842 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,756 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,973 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,999 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,079 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,020 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,308 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,463 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,908 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,457 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,223 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,907 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,773 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,597 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,840 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,934 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,959 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,652 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,243 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,730 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,904 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,268 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,545 |
| Largest Countries By Category | 0 | - | 4.97 | 158,940 |
| Countries by Countries | 0 | - | 4.96 | 63,698 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,421 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,139 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,901 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,820 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,945 |
| Island Countries | 0 | - | 4.99 | 712,720 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,253 |
| Northernmost Countries | 0 | - | 4.99 | 364,232 |
| Countries of South America | 0 | - | 5.00 | 933,290 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,274 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,703 |
| "Land" Countries | 0 | - | 4.98 | 338,515 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,970 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,998 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,382 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,697 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,352 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,329 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,465 |
| Random Countries by Borders | 0 | - | 4.99 | 83,134 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,292 |
| Countries with Megacities | 0 | - | 4.99 | 267,394 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,963 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,214 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,290 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,320 |
| Countries by Official Language | 0 | - | 4.95 | 196,093 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,753 |
| Countries in their Native Language | 0 | - | 4.99 | 199,821 |
| Independence from Whom | 0 | - | 4.99 | 213,191 |
| Subdivisions by Country | 0 | - | 4.87 | 50,638 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,544 |
| Megadiverse Countries | 0 | - | 4.96 | 141,614 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,017 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,552 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,741 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,235 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,336 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,882 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,168 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,108 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,271 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,624 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,418 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,462 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,170 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,600 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,905 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,492 |
| World Map Quiz | 0 | - | 4.81 | 65,806 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,357 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,147 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,607 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,701 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,479 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,593 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,786 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,716 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,828 |
| Widest Countries East to West | 0 | - | 4.92 | 130,771 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,612 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,295 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,532 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,091 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,028 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,518 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,515 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,904 |
| Countries with Double Letters | 0 | - | 4.96 | 97,199 |
| Countries that End in N | 0 | - | 4.95 | 172,196 |
| Countries with Five Letters | 0 | - | 4.96 | 284,142 |
| Countries with Six Letters | 0 | - | 4.94 | 214,610 |
| Countries with W | 0 | - | 4.96 | 161,036 |
| Countries with Z | 0 | - | 4.98 | 292,576 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,370 |
| Countries That End in U | 0 | - | 4.95 | 121,240 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,184 |
| Countries that End in O | 0 | - | 4.92 | 160,258 |
| Countries that End in R | 0 | - | 4.87 | 119,211 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,976 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,944 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,217 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,873 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,801 |
| Countries That End in Y | 0 | - | 4.91 | 186,109 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,521 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,321 |
| Countries that End in I | 0 | - | 4.94 | 135,350 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,687 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,087 |
| Countries That End in NIA | 0 | - | 4.92 | 110,094 |
| Countries That End in BIA | 0 | - | 4.93 | 149,631 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,706 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,809 |
| Countries That End in RIA | 0 | - | 4.93 | 127,087 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,438 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,713 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,250 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,697 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,247 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,836 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,361 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,554 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,956 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,668 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,481 |
| Countries that End in L | 0 | - | 4.94 | 157,174 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,190 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,360 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,567 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,041 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,483 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,517 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,199 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,463 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,327 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,042 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,251 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,258 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,849 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,287 |
