| Countries with Double Letters | 0 | - | 4.96 | 80,544 |
| Countries that End in N | 0 | - | 4.93 | 144,641 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 243,685 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,877 |
| Countries with W | 0 | - | 4.97 | 132,210 |
| Countries with Z | 0 | - | 4.98 | 274,109 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,453 |
| Countries That End in U | 0 | - | 4.95 | 113,492 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 99,050 |
| Countries that End in O | 0 | - | 4.92 | 153,130 |
| Countries that End in R | 0 | - | 4.84 | 99,528 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,508 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,714 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,527 |
| Countries by Last Two Letters | 0 | - | 4.89 | 121,253 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,948 |
| Countries That End in Y | 0 | - | 4.91 | 181,303 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 188,056 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,749 |
| Countries that End in I | 0 | - | 4.92 | 117,091 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,460 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,795 |
| Countries That End in NIA | 0 | - | 4.92 | 104,654 |
| Countries That End in BIA | 0 | - | 4.91 | 141,744 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,526 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,138 |
| Countries That End in RIA | 0 | - | 4.89 | 104,991 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,236 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 213,463 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 126,286 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 118,037 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 84,033 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,026 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,106 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,262 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,855 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,130 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,911 |
| Countries that End in L | 0 | - | 4.94 | 151,175 |
| "Land" Countries | 0 | - | 4.98 | 298,685 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 196,027 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,777 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 375,893 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,802,850 |
| Countries with Four Letters | 0 | - | 4.99 | 385,439 |
| Sahara Desert Countries | 0 | - | 4.98 | 142,457 |
| Himalayan Countries | 0 | - | 4.95 | 119,395 |
| Andean Countries | 0 | - | 4.92 | 66,967 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,442 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,957 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,534 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 58,158 |
| Danube Countries | 0 | - | 4.97 | 60,076 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,827 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,135 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,795 |
| Countries with the Worst Passports | 0 | - | 4.92 | 61,820 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 135,187 |
| European Landlocked Countries | 0 | - | 4.99 | 140,291 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,738 |
| Countries with the Most Species | 0 | - | 4.99 | 91,848 |
| Countries 197 to 205 | 0 | - | 4.87 | 62,181 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,373 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,497 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,916 |
| Countries that Use the Peso | 0 | - | 4.84 | 49,059 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,464 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,937 |
| Countries in the Alps | 0 | - | 4.86 | 109,311 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,939 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 96,257 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,832 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,755 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,792 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,286 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,225 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,240 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,497 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,148 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,247 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,822 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 38,706 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,539 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,242 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,889 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,443 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,289 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,214 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,922 |
| World Countries - Blind Typing | 0 | - | 5.00 | 83,193 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 44,565 |
| Largest Countries By Category | 0 | - | 4.97 | 150,296 |
| Countries by Countries | 0 | - | 4.96 | 57,887 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,348,093 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,494 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,411 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,093 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,082 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,424,243 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 120,977 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 197,244 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 357,558 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 378,891 |
| Island Countries Quiz | 0 | - | 4.99 | 686,726 |
| Biggest Countries by Area | 0 | - | 5.00 | 982,184 |
| Northernmost Countries | 0 | - | 4.99 | 340,711 |
| Countries of South America | 0 | - | 5.00 | 852,219 |
| Countries of Oceania | 0 | - | 5.00 | 963,440 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,706,030 |
| Countries with J | 0 | - | 4.55 | 178,134 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 70,786 |
| Countries by Consonants | 0 | - | 4.43 | 75,737 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,234,370 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 156,475 |
| Countries with Megacities | 0 | - | 4.99 | 215,529 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 185,025 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,340 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 124,003 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,171 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 267,348 |
| Countries by Official Language | 0 | - | 4.95 | 182,582 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 279,982 |
| Countries in their Native Language | 0 | - | 4.98 | 187,460 |
| Independence from Whom | 0 | - | 4.99 | 197,942 |
| Subdivisions by Country | 0 | - | 4.86 | 48,251 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 122,243 |
| Megadiverse Countries | 0 | - | 4.96 | 130,004 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 120,616 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,276 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,150 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 154,276 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,939 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 85,208 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,458 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,689 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,147 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 65,460 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,243 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,436 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,801 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 71,692 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,066 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 96,264 |
| World Map Quiz | 0 | - | 4.88 | 56,608 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 132,097 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,989 |
| Countries by Founding Story | 0 | - | 4.94 | 71,964 |
| Southernmost Countries of the World | 0 | - | 4.99 | 217,138 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,862 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 115,348 |
| Countries With the Most Languages | 0 | - | 4.88 | 187,472 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,031 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,851 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,837 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,865 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,006 |
| Widest Countries East to West | 0 | - | 4.92 | 123,905 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,023 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,484 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,156 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,760 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 124,388 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,709 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,846 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,380 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,513 |
| City to Country Quiz #3 | 0 | - | 4.87 | 103,206 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,957 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 218,017 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,504 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 121,585 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 139,630 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,868 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 146,298 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,461 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 105,466 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,627 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,381 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,372,460 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 362,589 |
| One Border Countries | 0 | - | 4.98 | 441,954 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 96,606 |
| Most Similar Country Names | 0 | - | 4.15 | 45,017 |
| Longest Country Name A-Z | 0 | - | 4.36 | 39,604 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,603,241 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 81,065 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,906 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,040 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,162 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 87,272 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,386 |
| Countries by National Anthem | 0 | - | 4.92 | 69,630 |
| NATO Countries Quiz | 0 | - | 4.98 | 255,887 |
| EU Countries Quiz | 0 | - | 4.99 | 252,497 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 150,988 |
| French-Speaking Countries | 0 | - | 4.85 | 254,522 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,266 |
| Countries That Use the Euro | 0 | - | 4.92 | 73,939 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 263,989 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 246,030 |
