| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 727,864 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,239 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,394 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,636,204 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,106,647 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,769 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,626 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,141 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,919 |
| Countries with Four Letters | 0 | - | 4.99 | 423,648 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,123 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,039 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,633,601 |
| Landlocked Countries | 0 | - | 4.99 | 422,624 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,989 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,221 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,532 |
| Country Chain | 0 | - | 4.96 | 217,739 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,584 |
| Countries by Emojis | 0 | - | 4.99 | 240,615 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,170 |
| Islands by Country #1 | 0 | - | 4.90 | 175,609 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,767 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,144 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,903 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,783,283 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,836 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,668 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,696 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,848 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,842 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,090 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,841 |
| Himalayan Countries | 0 | - | 4.95 | 139,022 |
| Andean Countries | 0 | - | 4.93 | 84,792 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,023 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,098 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,609 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,924 |
| Danube Countries | 0 | - | 4.97 | 72,097 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,127 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,497 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,449 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,938 |
| European Landlocked Countries | 0 | - | 4.99 | 147,232 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,766 |
| Countries with the Most Species | 0 | - | 4.99 | 103,306 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,885 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,631 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,748 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,597 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,319 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,742 |
| Countries in the Alps | 0 | - | 4.87 | 118,311 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,521 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,183 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,721 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,674 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,585 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,999 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,752 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,569 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,226 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,923 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,691 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,572 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,296 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,540 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,604 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,061 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,368 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,329 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,485 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,201 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,285 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,320 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,282 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,892 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,639 |
| Largest Countries By Category | 0 | - | 4.97 | 158,342 |
| Countries by Countries | 0 | - | 4.96 | 63,317 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,008 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,384 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,862 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,805 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,755 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,773 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,232 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,310 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,749 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,277 |
| Random Countries by Borders | 0 | - | 4.99 | 82,716 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,536 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,169 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,697 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,722 |
| Island Countries | 0 | - | 4.99 | 711,264 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,282 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,674 |
| Northernmost Countries | 0 | - | 4.99 | 362,276 |
| Countries of South America | 0 | - | 5.00 | 928,262 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,095 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,268 |
| "Land" Countries | 0 | - | 4.98 | 337,529 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 385,241 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,076 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,711 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,458 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,813 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,462 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,198 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,226 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,087 |
| Countries with Megacities | 0 | - | 4.99 | 265,006 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,907 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,582 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,166 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,653 |
| Countries by Official Language | 0 | - | 4.95 | 195,371 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,544 |
| Countries in their Native Language | 0 | - | 4.99 | 199,161 |
| Independence from Whom | 0 | - | 4.99 | 212,249 |
| Subdivisions by Country | 0 | - | 4.87 | 50,460 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,843 |
| Megadiverse Countries | 0 | - | 4.96 | 135,065 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,201 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,390 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,270 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,129 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,213 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,637 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,557 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,170 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,692 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,168 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,815 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,930 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,243 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,999 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,393 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,524 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,391 |
| World Map Quiz | 0 | - | 4.81 | 65,184 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,411 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,216 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,352 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,057 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,412 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,959 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,069 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,352 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,478 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,615 |
| Widest Countries East to West | 0 | - | 4.92 | 129,715 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,471 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,456 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,143 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,811 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,644 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,931 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,398 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,813 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,212 |
| Countries with Double Letters | 0 | - | 4.96 | 96,379 |
| Countries that End in N | 0 | - | 4.95 | 171,269 |
| Countries with Five Letters | 0 | - | 4.96 | 282,750 |
| Countries with Six Letters | 0 | - | 4.94 | 213,703 |
| Countries with W | 0 | - | 4.97 | 160,441 |
| Countries with Z | 0 | - | 4.98 | 291,614 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,801 |
| Countries That End in U | 0 | - | 4.95 | 120,899 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,556 |
| Countries that End in O | 0 | - | 4.92 | 159,555 |
| Countries that End in R | 0 | - | 4.87 | 119,003 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,764 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,230 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,759 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,529 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,453 |
| Countries That End in Y | 0 | - | 4.91 | 185,912 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,007 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,930 |
| Countries that End in I | 0 | - | 4.94 | 135,134 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,185 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,852 |
| Countries That End in NIA | 0 | - | 4.92 | 109,833 |
| Countries That End in BIA | 0 | - | 4.93 | 149,267 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,168 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,479 |
| Countries That End in RIA | 0 | - | 4.93 | 126,853 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,073 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,783 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,783 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,214 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,767 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,612 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,076 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,461 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,583 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,459 |
