| One Border Countries | 0 | - | 4.98 | 470,994 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,842,255 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,864 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,570 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,596 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,021 |
| Countries with Two Borders | 0 | - | 4.99 | 150,243 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,663 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,359 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,588 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,680 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,813 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,291 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,829 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,822 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,371 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,860 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,817 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,038 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,429 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,553 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,693 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,245 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,998 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,077 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,589 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,471 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,533 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,680 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,737,688 |
| Landlocked Countries | 0 | - | 4.99 | 423,884 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 93,023 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,535 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,378 |
| Himalayan Countries | 0 | - | 4.94 | 139,549 |
| Andean Countries | 0 | - | 4.94 | 85,073 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,254 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,473 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,817 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,129 |
| Danube Countries | 0 | - | 4.97 | 72,215 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,314 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,630 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,718 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,226 |
| European Landlocked Countries | 0 | - | 4.99 | 147,388 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,991 |
| Countries with the Most Species | 0 | - | 4.99 | 103,426 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,118 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,683 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,796 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,704 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,442 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,855 |
| Countries in the Alps | 0 | - | 4.87 | 118,501 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,096 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,466 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,814 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,817 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,751 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,927 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,675 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,305 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,023 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,765 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,633 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,393 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,640 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,728 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,387 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,476 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,272 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,369 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,943 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,676 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,384 |
| Largest Countries By Category | 0 | - | 4.97 | 158,555 |
| Countries by Countries | 0 | - | 4.96 | 63,446 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,350 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,911 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,301 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,125 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,603 |
| Island Countries | 0 | - | 4.99 | 711,799 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,522 |
| Northernmost Countries | 0 | - | 4.99 | 363,110 |
| Countries of South America | 0 | - | 5.00 | 930,031 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,363 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,588 |
| "Land" Countries | 0 | - | 4.98 | 337,899 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,835 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,675 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,250 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,575 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,198 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,247 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,383 |
| Random Countries by Borders | 0 | - | 4.99 | 82,859 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,457 |
| Countries with Megacities | 0 | - | 4.99 | 265,903 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,250 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,757 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,508 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,855 |
| Countries by Official Language | 0 | - | 4.95 | 195,656 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,133 |
| Countries in their Native Language | 0 | - | 4.99 | 199,428 |
| Independence from Whom | 0 | - | 4.99 | 212,581 |
| Subdivisions by Country | 0 | - | 4.87 | 50,538 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,087 |
| Megadiverse Countries | 0 | - | 4.96 | 135,159 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,451 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,464 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,348 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,165 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,379 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,703 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,757 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,749 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,208 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,102 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,273 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,333 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,063 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,479 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,603 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,862 |
| World Map Quiz | 0 | - | 4.81 | 65,387 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,701 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,696 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,345 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,983 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,208 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,328 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,541 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,591 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,211 |
| Widest Countries East to West | 0 | - | 4.92 | 130,209 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,532 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,034 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,442 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,934 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,813 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,118 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,448 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,854 |
| Countries with Double Letters | 0 | - | 4.96 | 96,695 |
| Countries that End in N | 0 | - | 4.95 | 171,576 |
| Countries with Five Letters | 0 | - | 4.96 | 283,231 |
| Countries with Six Letters | 0 | - | 4.94 | 214,037 |
| Countries with W | 0 | - | 4.96 | 160,649 |
| Countries with Z | 0 | - | 4.98 | 291,983 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,018 |
| Countries That End in U | 0 | - | 4.95 | 121,031 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,805 |
| Countries that End in O | 0 | - | 4.92 | 159,678 |
| Countries that End in R | 0 | - | 4.87 | 119,080 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,835 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,477 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,941 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,655 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,584 |
| Countries That End in Y | 0 | - | 4.91 | 186,001 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,198 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,083 |
| Countries that End in I | 0 | - | 4.94 | 135,221 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,387 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,940 |
| Countries That End in NIA | 0 | - | 4.92 | 109,928 |
| Countries That End in BIA | 0 | - | 4.93 | 149,408 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,341 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,635 |
| Countries That End in RIA | 0 | - | 4.93 | 126,947 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,223 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,125 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,964 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,405 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,943 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,695 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,196 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,495 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,729 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,550 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,213 |
| Countries that End in L | 0 | - | 4.94 | 157,000 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,757 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,308 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,158 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,089 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,133 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,129 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,926 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,302 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,063 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,739 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,061 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,175 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,761 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,124 |
