| "Land" Countries | 0 | - | 4.98 | 336,969 |
| Countries with Double Letters | 0 | - | 4.97 | 95,909 |
| Countries that End in N | 0 | - | 4.95 | 170,822 |
| Countries with Five Letters | 0 | - | 4.96 | 281,924 |
| Countries with Six Letters | 0 | - | 4.94 | 213,241 |
| Countries with W | 0 | - | 4.97 | 160,097 |
| Countries with Z | 0 | - | 4.98 | 291,098 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,452 |
| Countries That End in U | 0 | - | 4.95 | 120,719 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,229 |
| Countries that End in O | 0 | - | 4.92 | 159,424 |
| Countries that End in R | 0 | - | 4.87 | 118,893 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,658 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,833 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,518 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,357 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,220 |
| Countries That End in Y | 0 | - | 4.91 | 185,802 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,713 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,714 |
| Countries that End in I | 0 | - | 4.94 | 135,025 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,881 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,746 |
| Countries That End in NIA | 0 | - | 4.92 | 109,692 |
| Countries That End in BIA | 0 | - | 4.93 | 149,084 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,969 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,299 |
| Countries That End in RIA | 0 | - | 4.93 | 126,728 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,888 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,281 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,522 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,925 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,497 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,498 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,909 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,408 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,403 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,350 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,137 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,828 |
| Countries with the Highest Scrabble Score | 0 | - | 4.97 | 63,638 |
| Countries that End in L | 0 | - | 4.94 | 156,739 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,118 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,231 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,830,721 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,626,450 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,011 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,426 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,010 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,498,782 |
| Landlocked Countries | 0 | - | 4.99 | 420,985 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 573,742 |
| Countries with Four Letters | 0 | - | 4.99 | 422,770 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,033 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 67,368 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,977 |
| Himalayan Countries | 0 | - | 4.95 | 138,287 |
| Andean Countries | 0 | - | 4.95 | 84,362 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,586 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,497 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,210 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,622 |
| Danube Countries | 0 | - | 4.97 | 71,896 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,862 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,286 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,083 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,553 |
| European Landlocked Countries | 0 | - | 4.99 | 147,025 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,456 |
| Countries with the Most Species | 0 | - | 4.99 | 103,142 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,600 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,533 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,674 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,468 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,149 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,553 |
| Countries in the Alps | 0 | - | 4.87 | 118,033 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,259 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,823 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,576 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,502 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,376 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,870 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,535 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,393 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,110 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,740 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,585 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,442 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,114 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,383 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,410 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,655 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,209 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,722 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,877 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,435 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,808 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,139 |
| Largest Countries By Category | 0 | - | 4.97 | 158,009 |
| Countries by Countries | 0 | - | 4.96 | 63,076 |
| Pixelated World Map | 0 | - | 5.00 | 143,474 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,528 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,237 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,529 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,833 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,323 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,479 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,233 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,870 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,457 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,563 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,670 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,960 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,221 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,695 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,208 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,573 |
| Island Countries | 0 | - | 4.99 | 710,622 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,517 |
| Northernmost Countries | 0 | - | 4.99 | 361,483 |
| Countries of South America | 0 | - | 5.00 | 925,772 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,975 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,562 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,995 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,123 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,823 |
| Countries with J | 0 | - | 4.55 | 185,191 |
| Official Country Names of the World | 0 | - | 4.47 | 22,647 |
| Countries by Consonants | 0 | - | 4.42 | 78,649 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,615 |
| Countries with Megacities | 0 | - | 4.99 | 263,827 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,469 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,324 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,737 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,365 |
| Countries by Official Language | 0 | - | 4.95 | 195,036 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,093 |
| Countries in their Native Language | 0 | - | 4.99 | 198,541 |
| Independence from Whom | 0 | - | 4.99 | 211,845 |
| Subdivisions by Country | 0 | - | 4.86 | 50,384 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,485 |
| Megadiverse Countries | 0 | - | 4.96 | 134,923 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,900 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,285 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,868 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,073 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,978 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,521 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,316 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,967 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,591 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,049 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,452 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,816 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,127 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,906 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,288 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,436 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,863 |
| World Map Quiz | 0 | - | 4.81 | 64,942 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,679 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,243 |
| Countries of the World With a Disappearing Map | 0 | - | 5.00 | 112,730 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,006 |
| Countries by Sports in 60 Seconds | 0 | - | 4.92 | 145,555 |
| Countries by Founding Story | 0 | - | 4.95 | 77,274 |
| Countries by Road Signs | 0 | - | 4.98 | 53,881 |
| Countries That Do Not Border | 0 | - | 4.99 | 60,327 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,879 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,152 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,875 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,913 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,792 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,917 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,211 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,386 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,493 |
| Widest Countries East to West | 0 | - | 4.92 | 129,558 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,425 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,244 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,084 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,680 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,464 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,751 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,332 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,777 |
| Countries With the Tallest People | 0 | - | 4.93 | 94,921 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,944 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,880 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,912 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,539 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,499 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,881 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,404 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,208 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,773 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,040 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,665 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,796 |
