| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,794 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,800 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,871 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,085 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,166 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,859 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,589,106 |
| African Great Lakes | 0 | - | 4.82 | 65,216 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,411 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,875 |
| Countries with Four Letters | 0 | - | 4.99 | 418,660 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,630 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,326 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,271 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,190 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,281 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,433 |
| Landforms by Country | 0 | - | 4.52 | 51,919 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,901 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,255 |
| Capitals by River | 0 | - | 4.55 | 48,239 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,939,039 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,143 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,464 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,818 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,820 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,369 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,483 |
| Country Chain | 0 | - | 4.96 | 215,788 |
| South China Sea Countries | 0 | - | 4.78 | 57,499 |
| Countries by Emojis | 0 | - | 4.99 | 236,278 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,138 |
| Countries in Squares of the World Map | 0 | - | 5.00 | 182,859 |
| Islands by Country #1 | 0 | - | 4.87 | 174,520 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,950 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,304 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,353 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,912 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,426 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,888 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,699 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,491 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,680 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,866 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,473 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,551 |
| Rivers of the United States | 0 | - | 4.93 | 65,551 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,428 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,305 |
| Landlocked Countries | 0 | - | 4.99 | 413,830 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,484 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,475 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,373 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,355 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,868 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,717 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,649 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,659 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,917 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,420 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,503 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,216 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,311 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,512 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,616 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,965 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,055 |
| Random Countries by Borders | 0 | - | 4.99 | 81,698 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,286 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,920 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,749 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,479 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,336 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,032 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,182 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,967 |
| Island Countries | 0 | - | 4.99 | 707,709 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,679 |
| Himalayan Countries | 0 | - | 4.95 | 135,439 |
| Andean Countries | 0 | - | 4.94 | 82,855 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,252 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,253 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,937 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,630 |
| Danube Countries | 0 | - | 4.97 | 71,097 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,784 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,555 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,528 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,451 |
| European Landlocked Countries | 0 | - | 4.99 | 145,779 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,240 |
| Countries with the Most Species | 0 | - | 4.99 | 95,253 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,383 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,205 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,374 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,969 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,586 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,965 |
| Countries in the Alps | 0 | - | 4.86 | 116,862 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,586 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,288 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,024 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,439 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,196 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,024 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,600 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,775 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,388 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,082 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,202 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,053 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,462 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,770 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,769 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,118 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,665 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,266 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,796 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,415 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,739 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,614 |
| Largest Countries By Category | 0 | - | 4.97 | 156,798 |
| Countries by Countries | 0 | - | 4.96 | 62,273 |
| Top 10 African Countries by Coastline | 0 | - | 4.27 | 47,826 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,914 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,426 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,972 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,740 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,339 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,788 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,762 |
| Northernmost Countries | 0 | - | 4.99 | 357,853 |
| Countries of South America | 0 | - | 5.00 | 915,191 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,010 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,849,267 |
| "Land" Countries | 0 | - | 4.98 | 333,710 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,440 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,661 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,992 |
| Sea in the Answers | 0 | - | 4.10 | 48,576 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,490 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,760 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,413 |
| Countries with Megacities | 0 | - | 4.99 | 247,220 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,257 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,077 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,691 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,992 |
| Countries by Official Language | 0 | - | 4.95 | 192,816 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,182 |
| Countries in their Native Language | 0 | - | 4.99 | 196,682 |
| Independence from Whom | 0 | - | 4.99 | 209,759 |
| Subdivisions by Country | 0 | - | 4.86 | 50,077 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,806 |
| Megadiverse Countries | 0 | - | 4.97 | 133,920 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,838 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,928 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,436 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,866 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,697 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,022 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,080 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,164 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,223 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,752 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,629 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,437 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,508 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,512 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,699 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,033 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,643 |
| World Map Quiz | 0 | - | 4.81 | 63,528 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,803 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,355 |
| Countries by Founding Story | 0 | - | 4.95 | 76,567 |
| Countries by Road Signs | 0 | - | 4.98 | 53,120 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,403 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,021 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,975 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,832 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,882 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,087 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,300 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,959 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,352 |
| Widest Countries East to West | 0 | - | 4.92 | 128,624 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,255 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,582 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,702 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,659 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,074 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,055 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,589 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 335,073 |
| Countries with Double Letters | 0 | - | 4.97 | 93,431 |
| Countries that End in N | 0 | - | 4.94 | 156,923 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,728 |
| Countries with Six Letters | 0 | - | 4.93 | 210,403 |
