| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,192 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,494 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,644,178 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,677 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,551 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 167,318 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,709 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,244 |
| Countries with Four Letters | 0 | - | 4.99 | 424,887 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,553 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,418 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,746,261 |
| Landlocked Countries | 0 | - | 4.99 | 424,010 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,888 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 737,517 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,614 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,010 |
| Country Chain | 0 | - | 4.96 | 218,044 |
| Countries by Emojis | 0 | - | 4.99 | 241,263 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,372 |
| Islands by Country #1 | 0 | - | 4.90 | 175,987 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,040 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,382 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,251 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,232 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,561 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,096 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,298 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,216 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,158 |
| Name a Valid Country #1 | 0 | - | 4.99 | 293,813 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,223 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,268 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,198 |
| Name a Valid Country #6 | 0 | - | 4.95 | 141,831 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,425 |
| Himalayan Countries | 0 | - | 4.94 | 139,600 |
| Andean Countries | 0 | - | 4.94 | 85,090 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,284 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,510 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,847 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,145 |
| Danube Countries | 0 | - | 4.97 | 72,227 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,336 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,651 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,750 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,251 |
| European Landlocked Countries | 0 | - | 4.99 | 147,400 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,008 |
| Countries with the Most Species | 0 | - | 4.99 | 103,436 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,132 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,690 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,801 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,494 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,554 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,711 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,444 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,859 |
| Countries in the Alps | 0 | - | 4.87 | 118,508 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,132 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,489 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,823 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,825 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,758 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,106 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,946 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,689 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,313 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,028 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,636 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,401 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,643 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,735 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,405 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,483 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,496 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,336 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,386 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,992 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,713 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,393 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,983 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,762 |
| Largest Countries By Category | 0 | - | 4.97 | 158,567 |
| Countries by Countries | 0 | - | 4.96 | 63,455 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,520 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,521 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,238 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,030 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,635 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,351 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,629 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,924 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,422 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,222 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,006 |
| Random Countries by Borders | 0 | - | 4.99 | 82,867 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,083 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,408 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,159 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,658 |
| Island Countries | 0 | - | 4.99 | 711,851 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,218 |
| 20 Random Country Flags | 0 | - | 4.99 | 616,988 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,686 |
| Northernmost Countries | 0 | - | 4.99 | 363,181 |
| Countries of South America | 0 | - | 5.00 | 930,175 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,553 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,911 |
| "Land" Countries | 0 | - | 4.98 | 337,924 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 386,327 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,404 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,500 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,802 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,487 |
| Countries with Megacities | 0 | - | 4.99 | 265,952 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,283 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,766 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,535 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,883 |
| Countries by Official Language | 0 | - | 4.95 | 195,678 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,171 |
| Countries in their Native Language | 0 | - | 4.99 | 199,450 |
| Independence from Whom | 0 | - | 4.99 | 212,629 |
| Subdivisions by Country | 0 | - | 4.87 | 50,543 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,124 |
| Megadiverse Countries | 0 | - | 4.96 | 135,162 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,469 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,464 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,355 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,167 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,387 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,711 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,798 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,476 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,752 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,210 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,116 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,277 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,341 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,068 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,482 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,611 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,882 |
| World Map Quiz | 0 | - | 4.81 | 65,390 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,374 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,542 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,821 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,726 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,374 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,038 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,222 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,349 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,554 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,594 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,478 |
| Widest Countries East to West | 0 | - | 4.92 | 130,240 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,544 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,046 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,448 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,943 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,818 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,264 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,453 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,854 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,561 |
| Countries with Double Letters | 0 | - | 4.96 | 96,712 |
| Countries that End in N | 0 | - | 4.95 | 171,594 |
| Countries with Five Letters | 0 | - | 4.96 | 283,255 |
| Countries with Six Letters | 0 | - | 4.94 | 214,058 |
| Countries with W | 0 | - | 4.96 | 160,664 |
| Countries with Z | 0 | - | 4.98 | 292,014 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,033 |
| Countries That End in U | 0 | - | 4.95 | 121,039 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,824 |
| Countries that End in O | 0 | - | 4.92 | 159,684 |
| Countries that End in R | 0 | - | 4.87 | 119,081 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,837 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,497 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,953 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,669 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,593 |
| Countries That End in Y | 0 | - | 4.91 | 186,008 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,219 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,093 |
| Countries that End in I | 0 | - | 4.94 | 135,224 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,403 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,947 |
| Countries That End in NIA | 0 | - | 4.92 | 109,935 |
| Countries That End in BIA | 0 | - | 4.93 | 149,417 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,350 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,644 |
| Countries That End in RIA | 0 | - | 4.93 | 126,951 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,235 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,146 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,975 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,413 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,965 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,701 |
