| One Border Countries | 0 | - | 4.98 | 471,615 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,846,098 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,968 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,853 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,684 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,209 |
| Countries with Two Borders | 0 | - | 4.99 | 150,336 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,732 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,460 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,662 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,770 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,868 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,356 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,855 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,839 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,434 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,321 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,877 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,249 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,585 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,690 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,827 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,357 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,232 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,121 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,707 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,533 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,636 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,767 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,822,629 |
| Landlocked Countries | 0 | - | 4.99 | 424,967 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 93,105 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,799,464 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,858 |
| Himalayan Countries | 0 | - | 4.93 | 139,935 |
| Andean Countries | 0 | - | 4.94 | 85,274 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,433 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,780 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,009 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,302 |
| Danube Countries | 0 | - | 4.97 | 72,307 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,469 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,750 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,954 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,448 |
| European Landlocked Countries | 0 | - | 4.99 | 147,512 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,169 |
| Countries with the Most Species | 0 | - | 4.99 | 103,515 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,298 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,734 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,845 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,780 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,511 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,946 |
| Countries in the Alps | 0 | - | 4.87 | 118,666 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,446 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,708 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,909 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,948 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,866 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,180 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,305 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,802 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,364 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,104 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,811 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,686 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,485 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,725 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,821 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,635 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,549 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,665 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,558 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,392 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,958 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,465 |
| Largest Countries By Category | 0 | - | 4.97 | 158,741 |
| Countries by Countries | 0 | - | 4.96 | 63,562 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,377 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,030 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,839 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,462 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,276 |
| Island Countries | 0 | - | 4.99 | 712,272 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,884 |
| Northernmost Countries | 0 | - | 4.99 | 363,649 |
| Countries of South America | 0 | - | 5.00 | 931,604 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,013 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,841 |
| "Land" Countries | 0 | - | 4.98 | 338,218 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,899 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,391,956 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,321 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,636 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,288 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,285 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,421 |
| Random Countries by Borders | 0 | - | 4.99 | 82,989 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,957 |
| Countries with Megacities | 0 | - | 4.99 | 266,723 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,652 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,000 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,966 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,125 |
| Countries by Official Language | 0 | - | 4.95 | 195,866 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,454 |
| Countries in their Native Language | 0 | - | 4.99 | 199,630 |
| Independence from Whom | 0 | - | 4.99 | 212,898 |
| Subdivisions by Country | 0 | - | 4.87 | 50,587 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,323 |
| Megadiverse Countries | 0 | - | 4.96 | 135,224 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,839 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,501 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,411 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,202 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,506 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,801 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,018 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,791 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,237 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,359 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,336 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,405 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,118 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,549 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,662 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,161 |
| World Map Quiz | 0 | - | 4.81 | 65,570 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,101 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,991 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,481 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,375 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,341 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,459 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,661 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,649 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,467 |
| Widest Countries East to West | 0 | - | 4.92 | 130,381 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,578 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,171 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,489 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,011 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,914 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,405 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,476 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,880 |
| Countries with Double Letters | 0 | - | 4.96 | 96,930 |
| Countries that End in N | 0 | - | 4.94 | 171,796 |
| Countries with Five Letters | 0 | - | 4.96 | 283,564 |
| Countries with Six Letters | 0 | - | 4.94 | 214,289 |
| Countries with W | 0 | - | 4.96 | 160,838 |
| Countries with Z | 0 | - | 4.98 | 292,270 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,192 |
| Countries That End in U | 0 | - | 4.95 | 121,123 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,997 |
| Countries that End in O | 0 | - | 4.92 | 159,892 |
| Countries that End in R | 0 | - | 4.87 | 119,140 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,898 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,719 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,071 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,766 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,696 |
| Countries That End in Y | 0 | - | 4.91 | 186,055 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,372 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,197 |
| Countries that End in I | 0 | - | 4.94 | 135,277 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,533 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,016 |
| Countries That End in NIA | 0 | - | 4.92 | 110,004 |
| Countries That End in BIA | 0 | - | 4.93 | 149,526 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,451 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,714 |
| Countries That End in RIA | 0 | - | 4.93 | 127,020 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,320 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,427 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,085 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,530 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,103 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,771 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,278 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,524 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,836 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,612 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,338 |
| Countries that End in L | 0 | - | 4.94 | 157,073 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,730 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,332 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,315 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,863 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,385 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,323 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,073 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,389 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,186 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,889 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,154 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,215 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,805 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,194 |
