| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,934 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,104,843 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,313 |
| Random Countries by Borders | 0 | - | 4.99 | 82,602 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,375 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,631,450 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,268 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,842 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,753 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,881 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,151 |
| Random Country to Capital | 0 | - | 4.98 | 922,463 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,571,546 |
| Landlocked Countries | 0 | - | 4.99 | 421,817 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,467 |
| Countries with Four Letters | 0 | - | 4.99 | 423,227 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 384,641 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,568 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,777,729 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,374 |
| Himalayan Countries | 0 | - | 4.95 | 138,648 |
| Andean Countries | 0 | - | 4.93 | 84,572 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,763 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,764 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,395 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,782 |
| Danube Countries | 0 | - | 4.97 | 71,992 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,994 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,407 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,271 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,753 |
| European Landlocked Countries | 0 | - | 4.99 | 147,129 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,614 |
| Countries with the Most Species | 0 | - | 4.99 | 103,226 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,735 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,578 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,716 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,019 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,531 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,264 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,214 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,644 |
| Countries in the Alps | 0 | - | 4.87 | 118,185 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,018 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,005 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,633 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,584 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,493 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,939 |
| Country Chain | 0 | - | 4.96 | 217,365 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,659 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,474 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,171 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,829 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,644 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,516 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,210 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,453 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,503 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,862 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,293 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,574 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,055 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,861 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,059 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,213 |
| Largest Countries By Category | 0 | - | 4.97 | 158,192 |
| Countries by Emojis | 0 | - | 4.99 | 240,306 |
| Countries by Countries | 0 | - | 4.96 | 63,203 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,091 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,648 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,665 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,279 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,562 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,667 |
| Islands by Country #1 | 0 | - | 4.88 | 175,455 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,621 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,013 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,797 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,581 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,088 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,387 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,547 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,578 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,909 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 722,500 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,465 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,463 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,108 |
| Island Countries | 0 | - | 4.99 | 710,992 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,688 |
| Northernmost Countries | 0 | - | 4.99 | 361,896 |
| Countries of South America | 0 | - | 5.00 | 927,183 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,635 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,838 |
| "Land" Countries | 0 | - | 4.98 | 337,291 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,132 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,315 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,253 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,845 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,585 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,289 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,900 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,328 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,615 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,530 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,579 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,094 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,181 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,843 |
| Countries with Megacities | 0 | - | 4.99 | 264,460 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,708 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,454 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,967 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,518 |
| Countries by Official Language | 0 | - | 4.95 | 195,226 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,326 |
| Countries in their Native Language | 0 | - | 4.99 | 199,013 |
| Independence from Whom | 0 | - | 4.99 | 212,055 |
| Subdivisions by Country | 0 | - | 4.86 | 50,425 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,699 |
| Megadiverse Countries | 0 | - | 4.96 | 135,000 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,055 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,340 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,229 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,096 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,120 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,587 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,448 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,023 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,647 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,140 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,653 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,866 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,195 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,952 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,341 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,484 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,143 |
| World Map Quiz | 0 | - | 4.81 | 65,059 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,219 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,342 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,062 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,265 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,983 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,153 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,875 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,996 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,286 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,433 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,562 |
| Widest Countries East to West | 0 | - | 4.92 | 129,629 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,448 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,360 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,116 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,759 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,584 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,854 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,369 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,796 |
| Countries with Double Letters | 0 | - | 4.96 | 96,198 |
| Countries that End in N | 0 | - | 4.95 | 171,075 |
| Countries with Five Letters | 0 | - | 4.96 | 282,379 |
| Countries with Six Letters | 0 | - | 4.94 | 213,502 |
| Countries with W | 0 | - | 4.97 | 160,296 |
| Countries with Z | 0 | - | 4.98 | 291,401 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,669 |
| Countries That End in U | 0 | - | 4.95 | 120,829 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,424 |
| Countries that End in O | 0 | - | 4.92 | 159,495 |
| Countries that End in R | 0 | - | 4.87 | 118,956 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,713 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,047 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,669 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,454 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,369 |
| Countries That End in Y | 0 | - | 4.91 | 185,859 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,884 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,830 |
| Countries that End in I | 0 | - | 4.94 | 135,076 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,064 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,809 |
| Countries That End in NIA | 0 | - | 4.92 | 109,769 |
| Countries That End in BIA | 0 | - | 4.93 | 149,177 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,089 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,404 |
| Countries That End in RIA | 0 | - | 4.93 | 126,795 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,002 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,545 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,673 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,081 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,634 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,563 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,003 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,436 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,507 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,405 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,261 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,962 |
| Countries that End in L | 0 | - | 4.94 | 156,819 |
