| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,145 |
| One Border Countries | 0 | - | 4.98 | 410,360 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,397,512 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 324,192 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,967,208 |
| Countries by Borders #1 | 0 | - | 5.00 | 176,786 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 286,165 |
| Longest Border by Country #1 | 0 | - | 4.99 | 135,607 |
| Largest Countries with No Borders | 0 | - | 4.96 | 201,214 |
| Countries with Two Borders | 0 | - | 4.99 | 127,985 |
| Countries by Borders #2 | 0 | - | 4.96 | 118,624 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 120,353 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 120,326 |
| Largest Countries Bordering Each Other | 0 | - | 4.98 | 96,962 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.95 | 78,872 |
| Countries by Borders #3 | 0 | - | 4.98 | 90,462 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 72,769 |
| Longest Border by Country #2 | 0 | - | 4.96 | 113,634 |
| Countries with the Most Borders | 0 | - | 4.97 | 359,965 |
| Members of the Arab League | 0 | - | 4.85 | 62,118 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,057 |
| Himalayan Countries | 0 | - | 4.94 | 104,912 |
| Andean Countries | 0 | - | 4.91 | 58,182 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,139 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,392 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,750 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,062 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,321 |
| Danube Countries | 0 | - | 4.97 | 56,650 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,695 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,854 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,253 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,381 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,563 |
| European Landlocked Countries | 0 | - | 4.99 | 115,516 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,383 |
| Countries with the Most Species | 0 | - | 4.99 | 89,533 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,370 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,686 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,016 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,297 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,423 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,706 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,162 |
| Countries in the Alps | 0 | - | 4.84 | 102,679 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,338 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,197 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,595 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,275 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,990 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,576 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,642 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,154 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,327 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,664 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,444 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,599 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,677 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,509 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,984 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,486 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,111 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,350 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,399 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,399 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,940 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,288 |
| Largest Countries By Category | 0 | - | 4.96 | 144,939 |
| Countries by Countries | 0 | - | 4.96 | 54,659 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,075,443 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,713 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,232 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 29,924 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,773 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,730 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,433 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,578 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 70,255 |
| Countries with the Shortest Total Borders | 0 | - | 4.93 | 92,434 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 116,618 |
| Which Country Does Not Border... | 0 | - | 4.81 | 85,915 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 47,751 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 69,677 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,250 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 355,729 |
| Island Countries Quiz | 0 | - | 4.99 | 660,825 |
| Biggest Countries by Area | 0 | - | 5.00 | 933,631 |
| Northernmost Countries | 0 | - | 4.99 | 327,324 |
| Countries of South America | 0 | - | 5.00 | 793,980 |
| Countries of Oceania | 0 | - | 5.00 | 894,380 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,155,462 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,574,241 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 6,051 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,023 |
| Countries with Megacities | 0 | - | 4.99 | 197,439 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,700 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,038 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,507 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,994 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,131 |
| Countries by Official Language | 0 | - | 4.96 | 172,623 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,395 |
| Countries in their Native Language | 0 | - | 4.98 | 178,389 |
| Independence from Whom | 0 | - | 4.99 | 185,718 |
| Subdivisions by Country | 0 | - | 4.82 | 46,448 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,523 |
| Megadiverse Countries | 0 | - | 4.96 | 125,344 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,482 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,708 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,389 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,621 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,158 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,952 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,057 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,357 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,853 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,619 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,025 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,972 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,557 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,295 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,376 |
| World Map Quiz | 0 | - | 4.90 | 49,469 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,910 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,011 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,114 |
| Countries With the Most Languages | 0 | - | 4.91 | 173,810 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,373 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,668 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,377 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 54,013 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,488 |
| Widest Countries East to West | 0 | - | 4.93 | 119,419 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,832 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,081 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,680 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,630 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,399 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,221 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,476 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,067 |
| Countries with Double Letters | 0 | - | 4.96 | 68,521 |
| Countries that End in N | 0 | - | 4.93 | 132,853 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,915 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,190 |
| Countries with W | 0 | - | 4.97 | 122,820 |
| Countries with Z | 0 | - | 4.98 | 244,589 |
| Countries with Letters Missing | 0 | - | 4.97 | 166,726 |
| Countries That End in U | 0 | - | 4.95 | 107,618 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,628 |
| Countries that End in O | 0 | - | 4.92 | 146,988 |
| Countries that End in R | 0 | - | 4.85 | 96,513 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,275 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,501 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,863 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,276 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,355 |
| Countries That End in Y | 0 | - | 4.90 | 161,671 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,103 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,837 |
| Countries that End in I | 0 | - | 4.92 | 114,525 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,633 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,329 |
| Countries That End in NIA | 0 | - | 4.93 | 100,897 |
| Countries That End in BIA | 0 | - | 4.91 | 126,155 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,330 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,817 |
| Countries That End in RIA | 0 | - | 4.90 | 101,027 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,519 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,965 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,797 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,692 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,493 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,304 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,798 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,875 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,831 |
| Countries that End in L | 0 | - | 4.95 | 134,343 |
| "Land" Countries | 0 | - | 4.98 | 289,323 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,953 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,190 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 69,085 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 70,351 |
| Walking Across Borders with Hints #1 | 0 | - | 4.93 | 89,611 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,336 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,229 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,670 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 208,024 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,506 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,544 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,160 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 194,007 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,938 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,923 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,100 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,360 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,102 |
| Random Countries by Borders | 0 | - | 4.99 | 66,465 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,312,134 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,785 |
