| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,600,848 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,093,220 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,507 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 136,015 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 380,188 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,731 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,016 |
| Random Countries by Borders | 0 | - | 4.99 | 81,890 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,901 |
| Random Capital to Country | 0 | - | 4.99 | 2,582,965 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,686 |
| Random Country to Capital | 0 | - | 4.98 | 914,333 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,111,163 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,743 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,153 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 116,979 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,710 |
| Countries with Four Letters | 0 | - | 4.99 | 419,950 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,554 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,717 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,079 |
| Landlocked Countries | 0 | - | 4.99 | 415,978 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,869 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,092 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,813 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,927 |
| Country Chain | 0 | - | 4.96 | 216,301 |
| Countries by Emojis | 0 | - | 4.99 | 237,590 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,377 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,256 |
| Islands by Country #1 | 0 | - | 4.87 | 174,750 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,127 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,478 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,467 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,816 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,208 |
| Name a Valid Country #1 | 0 | - | 4.99 | 286,205 |
| Name a Valid Country #2 | 0 | - | 4.98 | 248,373 |
| Name a Valid Country #4 | 0 | - | 4.97 | 253,502 |
| Name a Valid Country #5 | 0 | - | 4.99 | 202,629 |
| Name a Valid Country #6 | 0 | - | 4.94 | 127,908 |
| Name a Valid Country #7 | 0 | - | 4.91 | 127,837 |
| Name a Valid Country #8 | 0 | - | 4.85 | 97,233 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 715,330 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,585 |
| Himalayan Countries | 0 | - | 4.95 | 136,212 |
| Andean Countries | 0 | - | 4.95 | 83,302 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,593 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,804 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,294 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,915 |
| Danube Countries | 0 | - | 4.97 | 71,331 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,102 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,783 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,006 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,960 |
| European Landlocked Countries | 0 | - | 4.99 | 146,041 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,650 |
| Countries with the Most Species | 0 | - | 4.99 | 96,542 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,788 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,294 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,471 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,108 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,756 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,128 |
| Countries in the Alps | 0 | - | 4.86 | 117,243 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,831 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,741 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,207 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,657 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,504 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,201 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,894 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,947 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,743 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,277 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,321 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,177 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,672 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,933 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,942 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,597 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,847 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,380 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,123 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,637 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,407 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,778 |
| Largest Countries By Category | 0 | - | 4.97 | 157,164 |
| Countries by Countries | 0 | - | 4.96 | 62,521 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,781 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,059 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,395 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,030 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,363 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,514 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,206 |
| Island Countries | 0 | - | 4.99 | 708,583 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,561 |
| Northernmost Countries | 0 | - | 4.99 | 359,037 |
| Countries of South America | 0 | - | 5.00 | 918,745 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,552 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,463 |
| "Land" Countries | 0 | - | 4.98 | 334,267 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,803 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,646 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,669 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,474 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,061 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,786 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,102 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,859 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,456 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,598 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,005 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,943 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,021 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,765 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,105 |
| Countries with Megacities | 0 | - | 4.99 | 248,601 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,979 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,454 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,348 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,408 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,884 |
| Countries by Official Language | 0 | - | 4.95 | 193,772 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,261 |
| Countries in their Native Language | 0 | - | 4.99 | 197,426 |
| Independence from Whom | 0 | - | 4.99 | 210,386 |
| Subdivisions by Country | 0 | - | 4.86 | 50,169 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,210 |
| Megadiverse Countries | 0 | - | 4.96 | 134,497 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,635 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,053 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,589 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,933 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,031 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,175 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,468 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,502 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,331 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,061 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,554 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,650 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,621 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,825 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,161 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,037 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,336 |
| World Map Quiz | 0 | - | 4.81 | 63,933 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,028 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,647 |
| Countries by Founding Story | 0 | - | 4.95 | 76,811 |
| Countries by Road Signs | 0 | - | 4.98 | 53,339 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,939 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,604 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,319 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,525 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,186 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,385 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,567 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,109 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,588 |
| Widest Countries East to West | 0 | - | 4.92 | 129,090 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,305 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,572 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,708 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,915 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,916 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,297 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,969 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,657 |
| Countries with Double Letters | 0 | - | 4.96 | 93,816 |
| Countries that End in N | 0 | - | 4.94 | 157,247 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,205 |
| Countries with Six Letters | 0 | - | 4.93 | 210,841 |
| Countries with W | 0 | - | 4.97 | 158,502 |
| Countries with Z | 0 | - | 4.98 | 288,396 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,853 |
| Countries That End in U | 0 | - | 4.95 | 119,664 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,996 |
| Countries that End in O | 0 | - | 4.92 | 158,693 |
| Countries that End in R | 0 | - | 4.87 | 118,412 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,966 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,560 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,627 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,717 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,279 |
| Countries That End in Y | 0 | - | 4.90 | 185,319 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,730 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,997 |
| Countries that End in I | 0 | - | 4.94 | 134,593 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,588 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,354 |
| Countries That End in NIA | 0 | - | 4.92 | 109,219 |
| Countries That End in BIA | 0 | - | 4.93 | 148,455 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,337 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,701 |
| Countries That End in RIA | 0 | - | 4.93 | 126,257 |
