| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,958 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,759 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,977 |
| Random Countries by Borders | 0 | - | 4.99 | 81,715 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,329 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,590,029 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,348 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,262 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,326 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,294 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,932 |
| Random Country to Capital | 0 | - | 4.98 | 912,184 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,955,794 |
| Landlocked Countries | 0 | - | 4.99 | 414,026 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,976 |
| Countries with Four Letters | 0 | - | 4.99 | 418,779 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,863 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,997 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,720,580 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,766 |
| Himalayan Countries | 0 | - | 4.95 | 135,505 |
| Andean Countries | 0 | - | 4.94 | 82,902 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,284 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,298 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,974 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,660 |
| Danube Countries | 0 | - | 4.97 | 71,120 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,819 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,582 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,574 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,481 |
| European Landlocked Countries | 0 | - | 4.99 | 145,804 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,273 |
| Countries with the Most Species | 0 | - | 4.99 | 95,265 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,415 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,213 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,384 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,412 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,980 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,531 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,605 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,986 |
| Countries in the Alps | 0 | - | 4.86 | 116,902 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,614 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,340 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,046 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,463 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,225 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,045 |
| Country Chain | 0 | - | 4.96 | 215,828 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,624 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,796 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,459 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,106 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,207 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,068 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,482 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,794 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,784 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,159 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,691 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,282 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,834 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,530 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,818 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,628 |
| Largest Countries By Category | 0 | - | 4.97 | 156,838 |
| Countries by Emojis | 0 | - | 4.99 | 236,551 |
| Countries by Countries | 0 | - | 4.96 | 62,302 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,163 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,246 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,471 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,977 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,345 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,813 |
| Islands by Country #1 | 0 | - | 4.87 | 174,548 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,967 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,319 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,364 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,963 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,857 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,573 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,757 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,939 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,521 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 712,111 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,596 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,277 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,091 |
| Island Countries | 0 | - | 4.99 | 707,779 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,058 |
| Northernmost Countries | 0 | - | 4.99 | 357,967 |
| Countries of South America | 0 | - | 5.00 | 915,533 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,530 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,849,981 |
| "Land" Countries | 0 | - | 4.98 | 333,757 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,505 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,490 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,396 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,377 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,890 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,363,504 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,760 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,668 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,721 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,972 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,482 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,546 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,626 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,526 |
| Countries with Megacities | 0 | - | 4.99 | 247,377 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,345 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,133 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,769 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,051 |
| Countries by Official Language | 0 | - | 4.95 | 192,864 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,254 |
| Countries in their Native Language | 0 | - | 4.99 | 196,721 |
| Independence from Whom | 0 | - | 4.99 | 209,807 |
| Subdivisions by Country | 0 | - | 4.86 | 50,088 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,838 |
| Megadiverse Countries | 0 | - | 4.97 | 133,943 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,893 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,938 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,448 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,871 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,722 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,033 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,118 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,191 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,234 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,755 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,674 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,444 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,525 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,524 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,711 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,044 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,692 |
| World Map Quiz | 0 | - | 4.81 | 63,578 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,928 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,381 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,449 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,143 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,995 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,892 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,912 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,104 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,316 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,971 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,365 |
| Widest Countries East to West | 0 | - | 4.92 | 128,642 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,221 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,279 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,589 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,721 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,675 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,099 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,060 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,596 |
| Countries with Double Letters | 0 | - | 4.96 | 93,463 |
| Countries that End in N | 0 | - | 4.94 | 156,961 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,768 |
| Countries with Six Letters | 0 | - | 4.93 | 210,431 |
| Countries with W | 0 | - | 4.97 | 158,280 |
| Countries with Z | 0 | - | 4.98 | 287,972 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,609 |
| Countries That End in U | 0 | - | 4.95 | 119,541 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,661 |
| Countries that End in O | 0 | - | 4.92 | 158,583 |
| Countries that End in R | 0 | - | 4.87 | 118,298 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,875 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,169 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,392 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,536 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,077 |
| Countries That End in Y | 0 | - | 4.90 | 185,228 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,451 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,741 |
| Countries that End in I | 0 | - | 4.94 | 134,456 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,277 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,231 |
| Countries That End in NIA | 0 | - | 4.92 | 109,043 |
| Countries That End in BIA | 0 | - | 4.92 | 147,748 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,127 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,526 |
| Countries That End in RIA | 0 | - | 4.93 | 126,114 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,049 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,273 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,551 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,930 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,414 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,952 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,164 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,690 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,549 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,832 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,200 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,864 |
| Countries that End in L | 0 | - | 4.94 | 155,781 |
