| One Border Countries | 0 | - | 4.98 | 471,638 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,846,216 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,968 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,864 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,685 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,212 |
| Countries with Two Borders | 0 | - | 4.99 | 150,337 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,734 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,464 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,662 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,772 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,870 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,359 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,856 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,840 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,434 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,334 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,877 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,253 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,587 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,693 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,829 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,360 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,232 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,122 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,711 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,536 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,640 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,769 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,824,746 |
| Landlocked Countries | 0 | - | 4.99 | 424,989 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 93,106 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,799,638 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,872 |
| Himalayan Countries | 0 | - | 4.93 | 139,947 |
| Andean Countries | 0 | - | 4.94 | 85,280 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,436 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,784 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,013 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,304 |
| Danube Countries | 0 | - | 4.97 | 72,309 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,470 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,750 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,962 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,455 |
| European Landlocked Countries | 0 | - | 4.99 | 147,519 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,176 |
| Countries with the Most Species | 0 | - | 4.99 | 103,515 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,304 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,737 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,848 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,783 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,518 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,948 |
| Countries in the Alps | 0 | - | 4.87 | 118,670 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,457 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,714 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,913 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,951 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,870 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,181 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,309 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,805 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,365 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,107 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,813 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,689 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,488 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,726 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,823 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,644 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,550 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,671 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,561 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,403 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,967 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,466 |
| Largest Countries By Category | 0 | - | 4.97 | 158,743 |
| Countries by Countries | 0 | - | 4.96 | 63,565 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,377 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,032 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,859 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,466 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,287 |
| Island Countries | 0 | - | 4.99 | 712,278 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,913 |
| Northernmost Countries | 0 | - | 4.99 | 363,662 |
| Countries of South America | 0 | - | 5.00 | 931,641 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,054 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,917 |
| "Land" Countries | 0 | - | 4.98 | 338,220 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,899 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,008 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,322 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,637 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,289 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,286 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,421 |
| Random Countries by Borders | 0 | - | 4.99 | 82,995 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,966 |
| Countries with Megacities | 0 | - | 4.99 | 266,746 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,659 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,003 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,971 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,128 |
| Countries by Official Language | 0 | - | 4.95 | 195,868 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,460 |
| Countries in their Native Language | 0 | - | 4.99 | 199,636 |
| Independence from Whom | 0 | - | 4.99 | 212,902 |
| Subdivisions by Country | 0 | - | 4.87 | 50,588 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,327 |
| Megadiverse Countries | 0 | - | 4.96 | 135,226 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,844 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,502 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,412 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,203 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,506 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,802 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,021 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,791 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,238 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,367 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,337 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,405 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,121 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,549 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,663 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,170 |
| World Map Quiz | 0 | - | 4.81 | 65,579 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,108 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,993 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,482 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,379 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,349 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,461 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,662 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,650 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,480 |
| Widest Countries East to West | 0 | - | 4.92 | 130,387 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,578 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,173 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,489 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,014 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,922 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,407 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,476 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,880 |
| Countries with Double Letters | 0 | - | 4.96 | 96,936 |
| Countries that End in N | 0 | - | 4.94 | 171,807 |
| Countries with Five Letters | 0 | - | 4.96 | 283,572 |
| Countries with Six Letters | 0 | - | 4.94 | 214,300 |
| Countries with W | 0 | - | 4.96 | 160,843 |
| Countries with Z | 0 | - | 4.98 | 292,276 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,199 |
| Countries That End in U | 0 | - | 4.95 | 121,126 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,999 |
| Countries that End in O | 0 | - | 4.92 | 159,923 |
| Countries that End in R | 0 | - | 4.87 | 119,141 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,898 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,723 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,075 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,767 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,700 |
| Countries That End in Y | 0 | - | 4.91 | 186,056 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,374 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,202 |
| Countries that End in I | 0 | - | 4.94 | 135,277 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,535 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,017 |
| Countries That End in NIA | 0 | - | 4.92 | 110,006 |
| Countries That End in BIA | 0 | - | 4.93 | 149,528 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,454 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,716 |
| Countries That End in RIA | 0 | - | 4.93 | 127,021 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,324 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,430 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,090 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,533 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,104 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,771 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,280 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,524 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,840 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,615 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,342 |
| Countries that End in L | 0 | - | 4.94 | 157,076 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,744 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,332 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,323 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,868 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,387 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,325 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,074 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,391 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,189 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,892 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,159 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,218 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,805 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,195 |
