| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,584,806 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,795 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,683 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,556 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,110 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,574 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 136,057 |
| Random Countries by Borders | 0 | - | 4.99 | 81,603 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,077 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,840 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,067 |
| Random Country to Capital | 0 | - | 4.98 | 910,819 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,871,274 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,545 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,922 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 115,926 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,120 |
| Countries with Four Letters | 0 | - | 4.99 | 418,201 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,026 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,074 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,856 |
| Landlocked Countries | 0 | - | 4.99 | 413,083 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,271 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,268 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,202 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,320 |
| Country Chain | 0 | - | 4.96 | 215,606 |
| Countries by Emojis | 0 | - | 4.99 | 235,920 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,045 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,686 |
| Islands by Country #1 | 0 | - | 4.87 | 174,419 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,862 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,231 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,299 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,550 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,632 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,037 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,172 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,328 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,626 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,241 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,336 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,854 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,821 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,347 |
| Himalayan Countries | 0 | - | 4.95 | 135,131 |
| Andean Countries | 0 | - | 4.94 | 82,714 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,131 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,049 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,803 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,505 |
| Danube Countries | 0 | - | 4.97 | 71,022 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,683 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,479 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,340 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,260 |
| European Landlocked Countries | 0 | - | 4.99 | 145,691 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,095 |
| Countries with the Most Species | 0 | - | 4.99 | 95,208 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,246 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,183 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,342 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,920 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,536 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,892 |
| Countries in the Alps | 0 | - | 4.87 | 116,726 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,501 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,130 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,963 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,354 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,088 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,948 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,499 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,706 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,741 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,999 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,175 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,009 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,392 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,696 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,697 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,933 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,584 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,214 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,713 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,953 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,444 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,558 |
| Largest Countries By Category | 0 | - | 4.97 | 156,661 |
| Countries by Countries | 0 | - | 4.96 | 62,193 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,273 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,942 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,309 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,691 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,263 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,913 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,159 |
| Island Countries | 0 | - | 4.99 | 707,352 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,678 |
| Northernmost Countries | 0 | - | 4.99 | 357,392 |
| Countries of South America | 0 | - | 5.00 | 913,787 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,132 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,091 |
| "Land" Countries | 0 | - | 4.98 | 333,483 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,343 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,396 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,283 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,297 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,781 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,679 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,567 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,583 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,338 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,621 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,146 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,310 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,017 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,553 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,924 |
| Countries with Megacities | 0 | - | 4.99 | 246,345 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,850 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,763 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,302 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,708 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,592 |
| Countries by Official Language | 0 | - | 4.95 | 192,635 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,951 |
| Countries in their Native Language | 0 | - | 4.99 | 196,509 |
| Independence from Whom | 0 | - | 4.99 | 209,537 |
| Subdivisions by Country | 0 | - | 4.86 | 50,040 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,623 |
| Megadiverse Countries | 0 | - | 4.97 | 133,844 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,685 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,889 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,382 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,844 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,573 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,954 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,626 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,084 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,190 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,726 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,439 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,378 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,452 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,465 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,626 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,996 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,751 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,407 |
| World Map Quiz | 0 | - | 4.81 | 63,404 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,344 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,246 |
| Countries by Founding Story | 0 | - | 4.95 | 76,467 |
| Countries by Road Signs | 0 | - | 4.98 | 53,029 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,208 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,911 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,875 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,564 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,795 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,994 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,198 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,895 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,281 |
| Widest Countries East to West | 0 | - | 4.92 | 128,545 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,197 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,124 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,534 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,639 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,542 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,970 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,037 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,556 |
| Countries with Double Letters | 0 | - | 4.97 | 93,263 |
| Countries that End in N | 0 | - | 4.94 | 156,331 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,540 |
| Countries with Six Letters | 0 | - | 4.93 | 210,240 |
| Countries with W | 0 | - | 4.97 | 158,144 |
| Countries with Z | 0 | - | 4.98 | 287,708 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,455 |
| Countries That End in U | 0 | - | 4.95 | 119,469 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,415 |
| Countries that End in O | 0 | - | 4.92 | 158,498 |
| Countries that End in R | 0 | - | 4.87 | 118,227 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,821 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,904 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,210 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,412 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,613 |
| Countries That End in Y | 0 | - | 4.90 | 185,169 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,216 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,583 |
| Countries that End in I | 0 | - | 4.94 | 134,341 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,060 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,156 |
| Countries That End in NIA | 0 | - | 4.92 | 108,945 |
| Countries That End in BIA | 0 | - | 4.92 | 147,638 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,003 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,425 |
| Countries That End in RIA | 0 | - | 4.93 | 126,032 |
