| One Border Countries | 0 | - | 4.98 | 472,555 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,853,060 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,159 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,277 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,835 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,530 |
| Countries with Two Borders | 0 | - | 4.99 | 150,465 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,882 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,641 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,832 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,920 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,932 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,464 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,877 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,535 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,025 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,970 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,563 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,848 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,890 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,044 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,567 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,397 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,189 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,912 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,622 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,813 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,892 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,965,623 |
| Landlocked Countries | 0 | - | 4.99 | 427,203 |
| Smallest Countries Bordering Each Other | 0 | - | 4.55 | 93,245 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,021 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,890 |
| Himalayan Countries | 0 | - | 4.93 | 140,804 |
| Andean Countries | 0 | - | 4.94 | 85,792 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,908 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,476 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,457 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,684 |
| Danube Countries | 0 | - | 4.97 | 72,546 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,795 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,970 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,429 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,908 |
| European Landlocked Countries | 0 | - | 4.99 | 147,735 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,530 |
| Countries with the Most Species | 0 | - | 4.99 | 103,642 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,631 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,812 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,951 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,923 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,677 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,125 |
| Countries in the Alps | 0 | - | 4.87 | 118,966 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,979 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,122 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,053 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,169 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,124 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,387 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,586 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,987 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,512 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,309 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,951 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,829 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,669 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,920 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,018 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,136 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,729 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,414 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,831 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,275 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,482 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,612 |
| Largest Countries By Category | 0 | - | 4.97 | 159,080 |
| Countries by Countries | 0 | - | 4.97 | 63,799 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,448 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,222 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,576 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,029 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,339 |
| Island Countries | 0 | - | 4.99 | 712,999 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,107 |
| Northernmost Countries | 0 | - | 4.99 | 364,577 |
| Countries of South America | 0 | - | 5.00 | 934,215 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,425 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,863 |
| "Land" Countries | 0 | - | 4.98 | 338,980 |
| Which Country Does Not Border... | 0 | - | 4.78 | 94,007 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,922 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,430 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,734 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,396 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,365 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,506 |
| Random Countries by Borders | 0 | - | 4.99 | 83,193 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,481 |
| Countries with Megacities | 0 | - | 4.99 | 267,818 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,131 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,333 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,461 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,429 |
| Countries by Official Language | 0 | - | 4.95 | 196,208 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,929 |
| Countries in their Native Language | 0 | - | 4.99 | 199,949 |
| Independence from Whom | 0 | - | 4.99 | 213,394 |
| Subdivisions by Country | 0 | - | 4.87 | 50,664 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,655 |
| Megadiverse Countries | 0 | - | 4.96 | 148,950 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,131 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,574 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,802 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,257 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,465 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,924 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,273 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,162 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,286 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,756 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,485 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,505 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,216 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,638 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,973 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,716 |
| World Map Quiz | 0 | - | 4.81 | 65,923 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,504 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,230 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,702 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,921 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,542 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,661 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,846 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,762 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,937 |
| Widest Countries East to West | 0 | - | 4.92 | 130,846 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,627 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,397 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,560 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,156 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,105 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,611 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,534 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,922 |
| Countries with Double Letters | 0 | - | 4.96 | 97,612 |
| Countries that End in N | 0 | - | 4.95 | 172,621 |
| Countries with Five Letters | 0 | - | 4.96 | 284,624 |
| Countries with Six Letters | 0 | - | 4.94 | 214,948 |
| Countries with W | 0 | - | 4.96 | 161,299 |
| Countries with Z | 0 | - | 4.98 | 292,987 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,663 |
| Countries That End in U | 0 | - | 4.95 | 121,385 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,420 |
| Countries that End in O | 0 | - | 4.92 | 160,369 |
| Countries that End in R | 0 | - | 4.87 | 119,276 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,060 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,143 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 185,535 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,186 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,737 |
| Countries That End in Y | 0 | - | 4.91 | 186,174 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,242 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,413 |
| Countries that End in I | 0 | - | 4.94 | 135,422 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,242 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,144 |
| Countries That End in NIA | 0 | - | 4.92 | 110,158 |
| Countries That End in BIA | 0 | - | 4.93 | 149,734 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,928 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,900 |
| Countries That End in RIA | 0 | - | 4.93 | 127,143 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,542 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,931 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,385 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,847 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,401 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,919 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,455 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,604 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,051 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,730 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,608 |
| Countries that End in L | 0 | - | 4.94 | 157,246 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,573 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,379 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,882 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,155 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,541 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,653 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,306 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,520 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,406 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,188 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,318 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,295 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,969 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,873 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,361 |
