| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,694 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,379 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,040 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,564 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,281 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,576 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,987 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 115,960 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,153 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,388 |
| Countries with Four Letters | 0 | - | 4.99 | 418,261 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,713 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,099 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,879,231 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,771 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,799 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,056 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,123 |
| Landlocked Countries | 0 | - | 4.99 | 413,158 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,752 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,949 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,220 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,343 |
| Country Chain | 0 | - | 4.96 | 215,624 |
| Countries by Emojis | 0 | - | 4.99 | 235,976 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,063 |
| Islands by Country #1 | 0 | - | 4.87 | 174,432 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,871 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,237 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,308 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,472 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,620 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,359 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,666 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,131 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,221 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,378 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,661 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,281 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 32,293 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,271 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,383 |
| Himalayan Countries | 0 | - | 4.95 | 135,158 |
| Andean Countries | 0 | - | 4.94 | 82,732 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,148 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,082 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,819 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,513 |
| Danube Countries | 0 | - | 4.97 | 71,032 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,694 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,487 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,365 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,282 |
| European Landlocked Countries | 0 | - | 4.99 | 145,701 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,110 |
| Countries with the Most Species | 0 | - | 4.99 | 95,215 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,261 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,189 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,351 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,361 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,406 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,928 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,541 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,900 |
| Countries in the Alps | 0 | - | 4.87 | 116,744 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,513 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,158 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,972 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,366 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,098 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,958 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,510 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,712 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,885 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,008 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,179 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,013 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,397 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,702 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,709 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,963 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,595 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,293 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,220 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,721 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,003 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,475 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,566 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,303 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,792 |
| Largest Countries By Category | 0 | - | 4.97 | 156,677 |
| Countries by Countries | 0 | - | 4.96 | 62,211 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,591 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,595 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,379 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,658 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,183 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,297 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,338 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,947 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,707 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,444 |
| National Animals | 0 | - | 4.24 | 89,132 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,564 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,984 |
| Random Countries by Borders | 0 | - | 4.99 | 81,613 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,106 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,466 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,347 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,960 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,321 |
| Island Countries | 0 | - | 4.99 | 707,398 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,922 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,815 |
| Northernmost Countries | 0 | - | 4.99 | 357,447 |
| Countries of South America | 0 | - | 5.00 | 913,936 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,308 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,467 |
| "Land" Countries | 0 | - | 4.98 | 333,509 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,185 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,613 |
| Companies by Country | 0 | - | 4.56 | 118,644 |
| African Great Lakes | 0 | - | 4.82 | 65,077 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,142 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,400 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,960 |
| Countries with Megacities | 0 | - | 4.99 | 246,413 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,874 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,776 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,329 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,731 |
| Countries by Official Language | 0 | - | 4.95 | 192,664 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,985 |
| Countries in their Native Language | 0 | - | 4.99 | 196,529 |
| Independence from Whom | 0 | - | 4.99 | 209,560 |
| Subdivisions by Country | 0 | - | 4.86 | 50,043 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,645 |
| Megadiverse Countries | 0 | - | 4.97 | 133,852 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,708 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,899 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,396 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,847 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,583 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,965 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,668 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,097 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,197 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,728 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,459 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,385 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,458 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,476 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,638 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,997 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,420 |
| World Map Quiz | 0 | - | 4.81 | 63,420 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,393 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,268 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,228 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,922 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,885 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,592 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,808 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,008 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,213 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,906 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,289 |
| Widest Countries East to West | 0 | - | 4.92 | 128,556 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,201 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,145 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,538 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,651 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,561 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,981 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,042 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,491 |
| Countries with Double Letters | 0 | - | 4.97 | 93,288 |
| Countries that End in N | 0 | - | 4.94 | 156,343 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,563 |
| Countries with Six Letters | 0 | - | 4.93 | 210,254 |
| Countries with W | 0 | - | 4.97 | 158,156 |
| Countries with Z | 0 | - | 4.98 | 287,734 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,469 |
| Countries That End in U | 0 | - | 4.95 | 119,477 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,439 |
| Countries that End in O | 0 | - | 4.92 | 158,506 |
| Countries that End in R | 0 | - | 4.87 | 118,238 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,833 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,920 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,236 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,425 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,733 |
| Countries That End in Y | 0 | - | 4.90 | 185,174 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,255 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,595 |
| Countries that End in I | 0 | - | 4.94 | 134,358 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,094 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,163 |
| Countries That End in NIA | 0 | - | 4.92 | 108,955 |
