| Islands by Country #1 | 0 | - | 4.90 | 176,224 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,149 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,477 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,329 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,476 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,648,718 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,810,667 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,111,758 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,940 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 167,692 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,007 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,398 |
| Countries with Four Letters | 0 | - | 4.99 | 425,352 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,794 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,615 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,733 |
| Landlocked Countries | 0 | - | 4.99 | 424,849 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 79,957 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,821 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,239 |
| Country Chain | 0 | - | 4.96 | 218,291 |
| Countries by Emojis | 0 | - | 4.99 | 241,585 |
| African Island Countries | 0 | - | 4.96 | 102,345 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,484 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,398 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,798,537 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,729 |
| Name a Valid Country #1 | 0 | - | 4.99 | 294,681 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,829 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,851 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,739 |
| Name a Valid Country #6 | 0 | - | 4.95 | 144,471 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 740,163 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,795 |
| Himalayan Countries | 0 | - | 4.93 | 139,884 |
| Andean Countries | 0 | - | 4.94 | 85,240 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,417 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,746 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,984 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,287 |
| Danube Countries | 0 | - | 4.97 | 72,298 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,452 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,741 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,921 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,420 |
| European Landlocked Countries | 0 | - | 4.99 | 147,496 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,142 |
| Countries with the Most Species | 0 | - | 4.99 | 103,508 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,286 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,723 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,837 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,770 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,507 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,936 |
| Countries in the Alps | 0 | - | 4.87 | 118,646 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,417 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,676 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,902 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,930 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,852 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,168 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,293 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,794 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,360 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,098 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,808 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,677 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,478 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,713 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,804 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,591 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,542 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,631 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,530 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,342 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,922 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,457 |
| Largest Countries By Category | 0 | - | 4.97 | 158,721 |
| Countries by Countries | 0 | - | 4.96 | 63,544 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,150 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,374 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,012 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,722 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,419 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,192 |
| Island Countries | 0 | - | 4.99 | 712,220 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,696 |
| Northernmost Countries | 0 | - | 4.99 | 363,588 |
| Mountains by Country | 0 | - | 4.56 | 81,963 |
| Countries of South America | 0 | - | 5.00 | 931,404 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,788 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,388 |
| "Land" Countries | 0 | - | 4.98 | 338,172 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,624 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,629 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,585 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,025 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,838 |
| Richest Island Countries | 0 | - | 4.85 | 101,134 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,391,567 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,307 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,562 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,892 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,851 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,506 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,867 |
| Movies by Country Quiz #1 | 0 | - | 4.17 | 53,421 |
| Movies by Country #2 | 0 | - | 4.20 | 45,821 |
| Musical Acts by Country #2 | 0 | - | 4.37 | 35,832 |
| Random Countries by Borders | 0 | - | 4.99 | 82,958 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,431 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,911 |
| Countries with Megacities | 0 | - | 4.99 | 266,636 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,619 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,985 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,922 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,087 |
| Countries by Official Language | 0 | - | 4.95 | 195,841 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,413 |
| Countries in their Native Language | 0 | - | 4.99 | 199,615 |
| Independence from Whom | 0 | - | 4.99 | 212,866 |
| Subdivisions by Country | 0 | - | 4.87 | 50,578 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,296 |
| Megadiverse Countries | 0 | - | 4.96 | 135,215 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,823 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,496 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,403 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,200 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,490 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,787 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,998 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,523 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,786 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,231 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,323 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,329 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,396 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,115 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,540 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,656 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,126 |
| World Map Quiz | 0 | - | 4.81 | 65,556 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,707 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,810 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,620 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,069 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,985 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,464 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,339 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,319 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,449 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,651 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,638 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,409 |
| Widest Countries East to West | 0 | - | 4.92 | 130,363 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,576 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,154 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,483 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,002 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,899 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,395 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,474 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,873 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,164 |
| Airlines by Country | 0 | - | 4.52 | 135,769 |
| Countries with Double Letters | 0 | - | 4.96 | 96,888 |
| Countries that End in N | 0 | - | 4.95 | 171,774 |
| Countries with Five Letters | 0 | - | 4.96 | 283,524 |
| Countries with Six Letters | 0 | - | 4.94 | 214,247 |
| Countries with W | 0 | - | 4.96 | 160,808 |
| Countries with Z | 0 | - | 4.98 | 292,234 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,166 |
| Countries That End in U | 0 | - | 4.95 | 121,110 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,975 |
| Countries that End in O | 0 | - | 4.92 | 159,748 |
| Countries that End in R | 0 | - | 4.87 | 119,130 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,887 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,677 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,052 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,752 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,682 |
| Countries That End in Y | 0 | - | 4.91 | 186,045 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,345 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,177 |
| Countries that End in I | 0 | - | 4.94 | 135,264 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,513 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,004 |
| Countries That End in NIA | 0 | - | 4.92 | 109,991 |
| Countries That End in BIA | 0 | - | 4.93 | 149,508 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,429 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,700 |
| Countries That End in RIA | 0 | - | 4.93 | 127,010 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,302 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,393 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,073 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,514 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,082 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,762 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,261 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,520 |
