| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,955 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,736 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,699 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,579 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,816,079 |
| Landlocked Countries | 0 | - | 4.99 | 417,242 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 563,473 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,209,628 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,262 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,299 |
| All Countries by Northernmost Point on Land | 0 | - | 4.89 | 125,782 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 62,124 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,992 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,210 |
| Himalayan Countries | 0 | - | 4.95 | 136,752 |
| Andean Countries | 0 | - | 4.95 | 83,597 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,859 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,157 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,523 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,123 |
| Danube Countries | 0 | - | 4.97 | 71,486 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,296 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,899 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,293 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,288 |
| European Landlocked Countries | 0 | - | 4.99 | 146,191 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,872 |
| Countries with the Most Species | 0 | - | 4.99 | 102,367 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,999 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,355 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,535 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,204 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,855 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,233 |
| Countries in the Alps | 0 | - | 4.86 | 117,430 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,963 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,035 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,303 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,803 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,899 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,319 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,070 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,042 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,860 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,391 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,396 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,239 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,787 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,050 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,061 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,836 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,938 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,467 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,305 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,337 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,742 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,873 |
| Largest Countries By Category | 0 | - | 4.97 | 157,354 |
| Countries by Countries | 0 | - | 4.96 | 62,665 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,951 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,107 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,422 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,945 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,453 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,141 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,062 |
| Pixelated World Map | 0 | - | 5.00 | 142,958 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,267 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,951 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,175 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,733 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,520 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,081 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,198 |
| Island Countries | 0 | - | 4.99 | 709,082 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,085 |
| Northernmost Countries | 0 | - | 4.99 | 359,701 |
| Countries of South America | 0 | - | 5.00 | 920,491 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,056 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,769 |
| "Land" Countries | 0 | - | 4.98 | 335,149 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,479 |
| Countries with Megacities | 0 | - | 4.99 | 249,404 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,331 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,660 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,657 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,635 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,567 |
| Countries by Official Language | 0 | - | 4.95 | 194,228 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,044 |
| Countries in their Native Language | 0 | - | 4.99 | 197,825 |
| Independence from Whom | 0 | - | 4.99 | 210,967 |
| Subdivisions by Country | 0 | - | 4.86 | 50,223 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,441 |
| Megadiverse Countries | 0 | - | 4.96 | 134,599 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,989 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,106 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,660 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,962 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,513 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,271 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,696 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,594 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,405 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,819 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,463 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,615 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,713 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,685 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,891 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,247 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,791 |
| World Map Quiz | 0 | - | 4.81 | 64,218 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,769 |
| Countries by Sports in 60 Seconds | 0 | - | 4.91 | 143,388 |
| Countries by Founding Story | 0 | - | 4.95 | 76,933 |
| Countries by Road Signs | 0 | - | 4.98 | 53,481 |
| Countries That Do Not Border | 0 | - | 4.99 | 59,817 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,180 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,737 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,470 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,872 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,342 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,519 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,683 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,177 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,088 |
| Widest Countries East to West | 0 | - | 4.92 | 129,216 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,341 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,734 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,946 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,995 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,042 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,414 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,151 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,691 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,710 |
| Countries with Double Letters | 0 | - | 4.96 | 94,534 |
| Countries that End in N | 0 | - | 4.95 | 168,564 |
| Countries with Five Letters | 0 | - | 4.96 | 271,901 |
| Countries with Six Letters | 0 | - | 4.93 | 211,781 |
| Countries with W | 0 | - | 4.97 | 159,129 |
| Countries with Z | 0 | - | 4.98 | 289,210 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,322 |
| Countries That End in U | 0 | - | 4.95 | 120,174 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,364 |
| Countries that End in O | 0 | - | 4.92 | 159,017 |
| Countries that End in R | 0 | - | 4.87 | 118,599 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,379 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,949 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,869 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,902 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,489 |
| Countries That End in Y | 0 | - | 4.90 | 185,512 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,972 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,190 |
| Countries that End in I | 0 | - | 4.94 | 134,726 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,796 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,459 |
| Countries That End in NIA | 0 | - | 4.92 | 109,351 |
| Countries That End in BIA | 0 | - | 4.93 | 148,645 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,507 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,856 |
| Countries That End in RIA | 0 | - | 4.93 | 126,393 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,437 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,235 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,962 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,288 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,916 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,195 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,517 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,043 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,919 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,088 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,614 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,314 |
| Countries that End in L | 0 | - | 4.94 | 156,370 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,225 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,099 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,747 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,607 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,662 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,430 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,890 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,423 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,885 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,341 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,099 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,889 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,315 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,541 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,552 |
| ALL First-Level Subdivisions of the World With a Map | 0 | - | 5.00 | 146,005 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.84 | 76,743 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,578 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.99 | 116,027 |
| 407 Islands on the World Map | 0 | - | 4.99 | 34,945 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,482 |
| Smallest Countries with at Least Two Borders | 0 | - | 4.97 | 42,206 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,855 |
