| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,927 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,104,794 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,310 |
| Random Countries by Borders | 0 | - | 4.99 | 82,599 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,366 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,631,279 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,259 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,832 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,743 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,877 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,085 |
| Random Country to Capital | 0 | - | 4.98 | 922,431 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,568,872 |
| Landlocked Countries | 0 | - | 4.99 | 421,776 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,453 |
| Countries with Four Letters | 0 | - | 4.99 | 423,209 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 384,580 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,555 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,777,529 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,356 |
| Himalayan Countries | 0 | - | 4.95 | 138,637 |
| Andean Countries | 0 | - | 4.93 | 84,562 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,752 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,752 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,382 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,772 |
| Danube Countries | 0 | - | 4.97 | 71,987 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,991 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,403 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,265 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,741 |
| European Landlocked Countries | 0 | - | 4.99 | 147,124 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,604 |
| Countries with the Most Species | 0 | - | 4.99 | 103,221 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,729 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,576 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,714 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,010 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,526 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,252 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,210 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,638 |
| Countries in the Alps | 0 | - | 4.87 | 118,182 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,986 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,001 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,631 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,582 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,486 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,936 |
| Country Chain | 0 | - | 4.96 | 217,361 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,657 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,471 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,168 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,825 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,642 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,508 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,206 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,451 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,500 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,854 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,291 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,519 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,051 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,837 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,048 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,211 |
| Largest Countries By Category | 0 | - | 4.97 | 158,187 |
| Countries by Emojis | 0 | - | 4.99 | 240,281 |
| Countries by Countries | 0 | - | 4.96 | 63,198 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,085 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,633 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,660 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,276 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,559 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,661 |
| Islands by Country #1 | 0 | - | 4.88 | 175,448 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,617 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,011 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,795 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,564 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,062 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,367 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,527 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,564 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,899 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 722,451 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,438 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,458 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,090 |
| Island Countries | 0 | - | 4.99 | 710,977 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,639 |
| Northernmost Countries | 0 | - | 4.99 | 361,880 |
| Countries of South America | 0 | - | 5.00 | 927,150 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,585 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,755 |
| "Land" Countries | 0 | - | 4.98 | 337,281 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,128 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,310 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,249 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,843 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,582 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,209 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,896 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,326 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,603 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,518 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,571 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,088 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,178 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,836 |
| Countries with Megacities | 0 | - | 4.99 | 264,440 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,700 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,447 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,958 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,512 |
| Countries by Official Language | 0 | - | 4.95 | 195,213 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,316 |
| Countries in their Native Language | 0 | - | 4.99 | 199,008 |
| Independence from Whom | 0 | - | 4.99 | 212,049 |
| Subdivisions by Country | 0 | - | 4.86 | 50,423 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,693 |
| Megadiverse Countries | 0 | - | 4.96 | 134,998 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,054 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,339 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,228 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,095 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,106 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,583 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,440 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,019 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,635 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,137 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,652 |
| 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 | 136,951 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,341 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,482 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,135 |
| World Map Quiz | 0 | - | 4.81 | 65,053 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,202 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,338 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,050 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,260 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,978 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,141 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,872 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,993 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,283 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,433 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,561 |
| Widest Countries East to West | 0 | - | 4.92 | 129,628 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,448 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,356 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,114 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,758 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,576 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,850 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,368 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,795 |
| Countries with Double Letters | 0 | - | 4.96 | 96,189 |
| Countries that End in N | 0 | - | 4.95 | 171,065 |
| Countries with Five Letters | 0 | - | 4.96 | 282,353 |
| Countries with Six Letters | 0 | - | 4.94 | 213,496 |
| Countries with W | 0 | - | 4.97 | 160,290 |
| Countries with Z | 0 | - | 4.98 | 291,388 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,654 |
| Countries That End in U | 0 | - | 4.95 | 120,826 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,416 |
| Countries that End in O | 0 | - | 4.92 | 159,495 |
| Countries that End in R | 0 | - | 4.87 | 118,953 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,712 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,037 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,662 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,453 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,366 |
| Countries That End in Y | 0 | - | 4.91 | 185,859 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,878 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,826 |
| Countries that End in I | 0 | - | 4.94 | 135,073 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,053 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,808 |
| Countries That End in NIA | 0 | - | 4.92 | 109,766 |
| Countries That End in BIA | 0 | - | 4.93 | 149,169 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,083 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,402 |
| Countries That End in RIA | 0 | - | 4.93 | 126,795 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,996 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,532 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,667 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,073 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,630 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,562 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,999 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,436 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,505 |
| 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 | 53,958 |
| Countries that End in L | 0 | - | 4.94 | 156,817 |
