| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,871 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,104,288 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,209 |
| Random Countries by Borders | 0 | - | 4.99 | 82,575 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,315 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,629,887 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,176 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,757 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,706 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,841 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,551 |
| Random Country to Capital | 0 | - | 4.98 | 922,086 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,548,404 |
| Landlocked Countries | 0 | - | 4.99 | 421,537 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,343 |
| Countries with Four Letters | 0 | - | 4.99 | 423,096 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 384,329 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,449 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,775,590 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,229 |
| Himalayan Countries | 0 | - | 4.95 | 138,520 |
| Andean Countries | 0 | - | 4.93 | 84,496 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,683 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,671 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,313 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,717 |
| Danube Countries | 0 | - | 4.97 | 71,954 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,951 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,370 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,208 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,678 |
| European Landlocked Countries | 0 | - | 4.99 | 147,081 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,549 |
| Countries with the Most Species | 0 | - | 4.99 | 103,189 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,687 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,556 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,699 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,941 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,508 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,183 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,189 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,607 |
| Countries in the Alps | 0 | - | 4.87 | 118,138 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,799 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,958 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,615 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,553 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,440 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,912 |
| Country Chain | 0 | - | 4.96 | 217,315 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,620 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,453 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,152 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,803 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,624 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,487 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,178 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,427 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,479 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,788 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,273 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,908 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,990 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,717 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,969 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,181 |
| Largest Countries By Category | 0 | - | 4.97 | 158,132 |
| Countries by Emojis | 0 | - | 4.99 | 240,183 |
| Countries by Countries | 0 | - | 4.96 | 63,143 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,052 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,470 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,624 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,266 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,552 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,634 |
| Islands by Country #1 | 0 | - | 4.88 | 175,413 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,605 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,984 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,783 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,470 |
| Name a Valid Country #1 | 0 | - | 4.99 | 290,832 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,244 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,352 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,445 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,808 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 722,152 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,216 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,382 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,943 |
| Island Countries | 0 | - | 4.99 | 710,886 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,307 |
| Northernmost Countries | 0 | - | 4.99 | 361,765 |
| Countries of South America | 0 | - | 5.00 | 926,715 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,084 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,852 |
| "Land" Countries | 0 | - | 4.98 | 337,192 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,093 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,299 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,234 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,833 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,565 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,585 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,860 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,303 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,516 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,441 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,505 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,041 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,168 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,777 |
| Countries with Megacities | 0 | - | 4.99 | 264,294 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,634 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,405 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,898 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,474 |
| Countries by Official Language | 0 | - | 4.95 | 195,170 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,249 |
| Countries in their Native Language | 0 | - | 4.99 | 198,968 |
| Independence from Whom | 0 | - | 4.99 | 211,980 |
| Subdivisions by Country | 0 | - | 4.86 | 50,410 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,652 |
| Megadiverse Countries | 0 | - | 4.96 | 134,975 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,004 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,326 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,133 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,091 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,059 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,570 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,401 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,002 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,624 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,118 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,602 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,850 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,177 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,937 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,329 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,469 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,046 |
| World Map Quiz | 0 | - | 4.81 | 65,033 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,041 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,306 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,002 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,229 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,953 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,091 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,840 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,972 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,262 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,414 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,535 |
| Widest Countries East to West | 0 | - | 4.92 | 129,605 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,439 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,333 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,105 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,736 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,548 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,818 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,358 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,791 |
| Countries with Double Letters | 0 | - | 4.96 | 96,118 |
| Countries that End in N | 0 | - | 4.95 | 171,004 |
| Countries with Five Letters | 0 | - | 4.96 | 282,225 |
| Countries with Six Letters | 0 | - | 4.94 | 213,434 |
| Countries with W | 0 | - | 4.97 | 160,241 |
| Countries with Z | 0 | - | 4.98 | 291,312 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,601 |
| Countries That End in U | 0 | - | 4.95 | 120,796 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,365 |
| Countries that End in O | 0 | - | 4.92 | 159,474 |
| Countries that End in R | 0 | - | 4.87 | 118,938 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,698 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,981 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,625 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,423 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,345 |
| Countries That End in Y | 0 | - | 4.91 | 185,843 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,830 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,795 |
| Countries that End in I | 0 | - | 4.94 | 135,057 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,008 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,784 |
| Countries That End in NIA | 0 | - | 4.92 | 109,735 |
| Countries That End in BIA | 0 | - | 4.93 | 149,148 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,052 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,378 |
| Countries That End in RIA | 0 | - | 4.93 | 126,772 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,970 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,470 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,636 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,028 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,594 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,544 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,978 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,430 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,476 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,389 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,225 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,920 |
| Countries that End in L | 0 | - | 4.94 | 156,785 |
