| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,874 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,104,331 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,219 |
| Random Countries by Borders | 0 | - | 4.99 | 82,575 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,319 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,630,000 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,185 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,765 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,711 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,843 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,599 |
| Random Country to Capital | 0 | - | 4.98 | 922,141 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,550,075 |
| Landlocked Countries | 0 | - | 4.99 | 421,552 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,357 |
| Countries with Four Letters | 0 | - | 4.99 | 423,121 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 384,361 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,453 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,775,739 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,238 |
| Himalayan Countries | 0 | - | 4.95 | 138,531 |
| Andean Countries | 0 | - | 4.93 | 84,506 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,688 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,680 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,317 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,721 |
| Danube Countries | 0 | - | 4.97 | 71,955 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,954 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,374 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,214 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,681 |
| European Landlocked Countries | 0 | - | 4.99 | 147,081 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,553 |
| Countries with the Most Species | 0 | - | 4.99 | 103,191 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,687 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,557 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,700 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,946 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,508 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,189 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,189 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,611 |
| Countries in the Alps | 0 | - | 4.87 | 118,142 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,814 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,962 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,616 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,555 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,442 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,914 |
| Country Chain | 0 | - | 4.96 | 217,320 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,621 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,454 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,154 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,805 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,627 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,490 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,180 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,430 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,479 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,791 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,273 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,993 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,992 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,726 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,974 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,182 |
| Largest Countries By Category | 0 | - | 4.97 | 158,135 |
| Countries by Emojis | 0 | - | 4.99 | 240,192 |
| Countries by Countries | 0 | - | 4.96 | 63,145 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,053 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,502 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,628 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,266 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,554 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,637 |
| Islands by Country #1 | 0 | - | 4.88 | 175,414 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,607 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,986 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,784 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,486 |
| Name a Valid Country #1 | 0 | - | 4.99 | 290,863 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,267 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,402 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,466 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,825 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 722,175 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,232 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,388 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,955 |
| Island Countries | 0 | - | 4.99 | 710,895 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,335 |
| Northernmost Countries | 0 | - | 4.99 | 361,773 |
| Countries of South America | 0 | - | 5.00 | 926,737 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,121 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,929 |
| "Land" Countries | 0 | - | 4.98 | 337,211 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,097 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,301 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,234 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,834 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,566 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,643 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,865 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,306 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,525 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,450 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,515 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,045 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,171 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,782 |
| Countries with Megacities | 0 | - | 4.99 | 264,311 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,644 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,408 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,903 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,477 |
| Countries by Official Language | 0 | - | 4.95 | 195,173 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,252 |
| Countries in their Native Language | 0 | - | 4.99 | 198,970 |
| Independence from Whom | 0 | - | 4.99 | 211,984 |
| Subdivisions by Country | 0 | - | 4.86 | 50,411 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,654 |
| Megadiverse Countries | 0 | - | 4.96 | 134,977 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,010 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,328 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,163 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,091 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,062 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,573 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,405 |
| 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 | 45,122 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,603 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,851 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,177 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,940 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,331 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,470 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,056 |
| World Map Quiz | 0 | - | 4.81 | 65,033 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,052 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,308 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,004 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,231 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,954 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,092 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,842 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,974 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,264 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,416 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,541 |
| 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 | 186,334 |
| 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 | 94,738 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,550 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,819 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,359 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,791 |
| Countries with Double Letters | 0 | - | 4.96 | 96,127 |
| Countries that End in N | 0 | - | 4.95 | 171,010 |
| Countries with Five Letters | 0 | - | 4.96 | 282,234 |
| Countries with Six Letters | 0 | - | 4.94 | 213,439 |
| Countries with W | 0 | - | 4.97 | 160,249 |
| Countries with Z | 0 | - | 4.98 | 291,318 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,609 |
| Countries That End in U | 0 | - | 4.95 | 120,801 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,374 |
| Countries that End in O | 0 | - | 4.92 | 159,477 |
| Countries that End in R | 0 | - | 4.87 | 118,940 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,699 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,988 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,627 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,425 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,347 |
| Countries That End in Y | 0 | - | 4.91 | 185,844 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,831 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,801 |
| Countries that End in I | 0 | - | 4.94 | 135,058 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,012 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,785 |
| Countries That End in NIA | 0 | - | 4.92 | 109,739 |
| Countries That End in BIA | 0 | - | 4.93 | 149,149 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,054 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,381 |
| Countries That End in RIA | 0 | - | 4.93 | 126,773 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,973 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,478 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,637 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,031 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,596 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,546 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,982 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,431 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,479 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,392 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,231 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,924 |
| Countries that End in L | 0 | - | 4.94 | 156,786 |
