| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,437 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,713 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,172 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,622,345 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,101,360 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,798 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,161 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,761 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,701 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,340 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,489 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,104 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,184 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,379 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,404 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,443 |
| Landforms by Country | 0 | - | 4.52 | 51,970 |
| Countries with Four Letters | 0 | - | 4.99 | 422,356 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,568 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,579 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,446,070 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,602 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,752 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 720,594 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,638 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 182,297 |
| Country Chain | 0 | - | 4.96 | 217,079 |
| Countries by Emojis | 0 | - | 4.99 | 239,667 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,918 |
| Islands by Country #1 | 0 | - | 4.88 | 175,273 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,515 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,867 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,717 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,692 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,251 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,995 |
| Name a Valid Country #1 | 0 | - | 4.99 | 289,812 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,673 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,548 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,954 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,404 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,250 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,946 |
| Landlocked Countries | 0 | - | 4.99 | 420,315 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,766,526 |
| Rivers of the United States | 0 | - | 4.93 | 66,189 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,661 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,911 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,189 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,104 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,747 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,461 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,681 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,197 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,065 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,041 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,181 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,804 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,521 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 79,561 |
| 20 Random Country Flags | 0 | - | 4.99 | 612,262 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,492 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,076 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,066 |
| Random Countries by Borders | 0 | - | 4.99 | 82,429 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 383,396 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,043 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,759 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,150 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,001 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,144 |
| Island Countries | 0 | - | 4.99 | 710,318 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,633 |
| Himalayan Countries | 0 | - | 4.95 | 138,032 |
| Andean Countries | 0 | - | 4.95 | 84,229 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,452 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,263 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,093 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,533 |
| Danube Countries | 0 | - | 4.97 | 71,810 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,753 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,200 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,934 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,355 |
| European Landlocked Countries | 0 | - | 4.99 | 146,945 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,344 |
| Countries with the Most Species | 0 | - | 4.99 | 103,073 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,508 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,493 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,650 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,431 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,112 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,496 |
| Countries in the Alps | 0 | - | 4.87 | 117,939 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,047 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,663 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,538 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,431 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,281 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,826 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,453 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,322 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,065 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,689 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,558 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,414 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,054 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,337 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,348 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,490 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,163 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,673 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,785 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,084 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,621 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,093 |
| Largest Countries By Category | 0 | - | 4.97 | 157,898 |
| Countries by Countries | 0 | - | 4.97 | 62,995 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,244 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,440 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,876 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,212 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,504 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,491 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,321,704 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,677 |
| Northernmost Countries | 0 | - | 4.99 | 361,157 |
| Countries of South America | 0 | - | 5.00 | 924,865 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,732 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,399 |
| "Land" Countries | 0 | - | 4.98 | 336,151 |
| African Great Lakes | 0 | - | 4.82 | 66,241 |
| Capitals by River | 0 | - | 4.55 | 48,312 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,139 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,347 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,865 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,250 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,469 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,279 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,428 |
| Countries with Megacities | 0 | - | 4.99 | 263,233 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,263 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,224 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,557 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,261 |
| Countries by Official Language | 0 | - | 4.95 | 194,908 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,909 |
| Countries in their Native Language | 0 | - | 4.99 | 198,436 |
| Independence from Whom | 0 | - | 4.99 | 211,678 |
| Subdivisions by Country | 0 | - | 4.86 | 50,354 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,952 |
| Megadiverse Countries | 0 | - | 4.96 | 134,869 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,768 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,252 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 976,660 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,840 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,057 |
| South China Sea Countries | 0 | - | 4.78 | 57,697 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,892 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,468 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,193 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,928 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,968 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,556 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,873 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,033 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,320 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,786 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,086 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,857 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,249 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,408 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,501 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,607 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 95,645 |
| World Map Quiz | 0 | - | 4.81 | 64,842 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,336 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,178 |
| Countries by Founding Story | 0 | - | 4.95 | 77,204 |
| Countries by Road Signs | 0 | - | 4.98 | 53,811 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,548,612 |
| Random Country Shape to Country | 0 | - | 4.90 | 113,224 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,758 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,077 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,814 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,736 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,696 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,834 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,959 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,345 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,421 |
| Widest Countries East to West | 0 | - | 4.92 | 129,490 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,415 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,147 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,054 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,632 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,399 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,693 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,306 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,759 |
