| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,391,777 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 69,529 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,069 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,436 |
| One Border Countries | 0 | - | 4.98 | 409,950 |
| Countries of the World in 1900 | 0 | - | 4.88 | 66,259 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 170,454 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 127,943 |
| Countries by Borders #1 | 0 | - | 5.00 | 176,662 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 285,748 |
| Longest Border by Country #1 | 0 | - | 4.99 | 135,494 |
| Largest Countries with No Borders | 0 | - | 4.96 | 200,887 |
| Countries with Two Borders | 0 | - | 4.99 | 127,897 |
| Countries by Borders #2 | 0 | - | 4.96 | 118,529 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 120,231 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 120,227 |
| Largest Countries Bordering Each Other | 0 | - | 4.98 | 96,858 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.95 | 78,811 |
| Countries by Borders #3 | 0 | - | 4.98 | 90,394 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 72,732 |
| Longest Border by Country #2 | 0 | - | 4.96 | 113,549 |
| Longest Border by Country #3 | 0 | - | 4.99 | 63,950 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,892,560 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,359 |
| Countries with the Most Borders | 0 | - | 4.97 | 359,669 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,067,454 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 29,887 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,605 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,492 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,209 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,394 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 69,787 |
| Members of the Arab League | 0 | - | 4.85 | 61,757 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,807 |
| Himalayan Countries | 0 | - | 4.94 | 104,668 |
| Andean Countries | 0 | - | 4.91 | 58,034 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,965 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,282 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,622 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,011 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,255 |
| Danube Countries | 0 | - | 4.97 | 56,612 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,649 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,814 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,129 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,309 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,460 |
| European Landlocked Countries | 0 | - | 4.99 | 115,475 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,287 |
| Countries with the Most Species | 0 | - | 4.99 | 89,511 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,306 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,660 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,989 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,219 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,388 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,666 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,094 |
| Countries in the Alps | 0 | - | 4.84 | 102,568 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,245 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,967 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,533 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,190 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,894 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,499 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,573 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,112 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,289 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,605 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,380 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,555 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,643 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,429 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,907 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,414 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,889 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,296 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,341 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,892 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,737 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,250 |
| Largest Countries By Category | 0 | - | 4.96 | 144,792 |
| Countries by Countries | 0 | - | 4.96 | 54,593 |
| Pixelated World Map | 0 | - | 5.00 | 128,156 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,313 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,659 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 44,674 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,939 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,122 |
| Countries with the Shortest Total Borders | 0 | - | 4.92 | 81,912 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 116,505 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 47,698 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,918 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,189 |
| Island Countries Quiz | 0 | - | 4.99 | 660,159 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,417 |
| Northernmost Countries | 0 | - | 4.99 | 326,964 |
| Countries of South America | 0 | - | 5.00 | 792,477 |
| Countries of Oceania | 0 | - | 5.00 | 892,735 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,148,562 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,570,905 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.97 | 5,728 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 85,077 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 69,011 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 70,287 |
| Walking Across Borders with Hints #1 | 0 | - | 4.93 | 89,524 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 66,738 |
| Random Countries by Borders | 0 | - | 4.99 | 66,381 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,735 |
| Countries with Megacities | 0 | - | 4.99 | 196,995 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,343 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,829 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,220 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,786 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,681 |
| Countries by Official Language | 0 | - | 4.96 | 171,289 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,057 |
| Countries in their Native Language | 0 | - | 4.98 | 178,208 |
| Independence from Whom | 0 | - | 4.99 | 185,423 |
| Subdivisions by Country | 0 | - | 4.82 | 46,419 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,356 |
| Megadiverse Countries | 0 | - | 4.96 | 125,268 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,289 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,634 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,363 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,510 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,104 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,809 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,006 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,325 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,752 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,565 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,966 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,938 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,508 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,235 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 82,056 |
| World Map Quiz | 0 | - | 4.90 | 49,306 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,265 |
| Countries by Founding Story | 0 | - | 4.92 | 54,828 |
| Countries by Road Signs | 0 | - | 4.98 | 45,225 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,605 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,844 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,939 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,468 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,262 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,530 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,227 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,905 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,396 |
| Widest Countries East to West | 0 | - | 4.93 | 119,312 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,807 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,938 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,628 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,423 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,782 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,112 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,440 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,037 |
| Countries with Double Letters | 0 | - | 4.96 | 68,278 |
| Countries that End in N | 0 | - | 4.94 | 132,615 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,641 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,952 |
| Countries with W | 0 | - | 4.96 | 122,657 |
| Countries with Z | 0 | - | 4.98 | 244,335 |
| Countries with Letters Missing | 0 | - | 4.97 | 162,908 |
| Countries That End in U | 0 | - | 4.95 | 107,528 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,412 |
| Countries that End in O | 0 | - | 4.92 | 146,895 |
| Countries that End in R | 0 | - | 4.85 | 96,457 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,215 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,275 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,728 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,192 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,256 |
| Countries That End in Y | 0 | - | 4.90 | 161,609 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,944 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,721 |
| Countries that End in I | 0 | - | 4.92 | 114,486 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,497 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,252 |
| Countries That End in NIA | 0 | - | 4.93 | 100,821 |
| Countries That End in BIA | 0 | - | 4.91 | 126,044 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,219 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,713 |
| Countries That End in RIA | 0 | - | 4.90 | 100,937 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,414 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,634 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,632 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,515 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,332 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,207 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,685 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,803 |
| Countries with the Word "And" | 0 | - | 4.98 | 83,402 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,681 |
| Countries that End in L | 0 | - | 4.95 | 134,247 |
| "Land" Countries | 0 | - | 4.98 | 289,139 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,781 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,169 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,257 |
