| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,354,673 |
| Countries with the Most Borders | 0 | - | 4.97 | 357,037 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,250 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,594 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,421 |
| Countries with the Shortest Total Borders | 0 | - | 4.92 | 81,157 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 115,876 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 47,396 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 68,601 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,285 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,708 |
| One Border Countries | 0 | - | 4.98 | 406,466 |
| Walking Across Borders with Hints #1 | 0 | - | 4.93 | 88,849 |
| Random Countries by Borders | 0 | - | 4.99 | 65,833 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,314 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,337 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,385 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,436,183 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 95,716 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 89,824 |
| Countries by Borders #1 | 0 | - | 5.00 | 175,674 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 283,493 |
| Longest Border by Country #1 | 0 | - | 4.99 | 134,650 |
| Largest Countries with No Borders | 0 | - | 4.97 | 179,953 |
| Countries with Two Borders | 0 | - | 4.99 | 127,173 |
| Countries by Borders #2 | 0 | - | 4.97 | 117,829 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 119,027 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 119,398 |
| Largest Countries Bordering Each Other | 0 | - | 4.98 | 96,155 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.95 | 78,345 |
| Countries by Borders #3 | 0 | - | 4.98 | 89,903 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 72,547 |
| Longest Border by Country #2 | 0 | - | 4.96 | 113,060 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,176 |
| Five Least Guessed Countries by Continent | 0 | - | 4.96 | 79,782 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,015,110 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 125,619 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 55,902 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 57,801 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 29,690 |
| Countries on the Equator | 0 | - | 4.82 | 132,313 |
| Members of the Arab League | 0 | - | 4.82 | 59,119 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,069 |
| Himalayan Countries | 0 | - | 4.95 | 102,373 |
| Andean Countries | 0 | - | 4.90 | 56,864 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,705 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,543 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,862 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,523 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,700 |
| Danube Countries | 0 | - | 4.97 | 56,350 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,385 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,586 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,278 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,756 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,358 |
| European Landlocked Countries | 0 | - | 4.99 | 114,828 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,733 |
| Countries with the Most Species | 0 | - | 4.99 | 89,079 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,797 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,426 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,802 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,741 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,100 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,441 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,664 |
| Countries in the Alps | 0 | - | 4.82 | 101,779 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,592 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,731 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,105 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,685 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,332 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,834 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,011 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,733 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,056 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,123 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,889 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,323 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,399 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,939 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,472 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,943 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,530 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,933 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,930 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,590 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,291 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,934 |
| Largest Countries By Category | 0 | - | 4.96 | 143,837 |
| Countries by Countries | 0 | - | 4.95 | 54,046 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,282 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,456 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,523 |
| Island Countries Quiz | 0 | - | 4.99 | 638,345 |
| Biggest Countries by Area | 0 | - | 5.00 | 924,325 |
| Northernmost Countries | 0 | - | 4.99 | 325,237 |
| Countries of South America | 0 | - | 5.00 | 783,197 |
| Countries of Oceania | 0 | - | 5.00 | 881,389 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,106,254 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,550,292 |
| Which Country Does Not Border... | 0 | - | 4.79 | 85,154 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.89 | 205,422 |
| Five Most Guessed Countries by Continent | 0 | - | 4.96 | 152,656 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 160,285 |
| European Countries with One Border | 0 | - | 4.96 | 149,099 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 143,342 |
| Asian Countries with the Fewest Borders | 0 | - | 4.81 | 87,599 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,062 |
| Countries with Megacities | 0 | - | 4.99 | 194,614 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,357 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,813 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,613 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,670 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,910 |
| Countries by Official Language | 0 | - | 4.95 | 153,421 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,582 |
| Countries in their Native Language | 0 | - | 4.98 | 176,937 |
| Independence from Whom | 0 | - | 4.99 | 182,843 |
| Subdivisions by Country | 0 | - | 4.82 | 46,167 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,809 |
| Megadiverse Countries | 0 | - | 4.96 | 124,712 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,879 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,987 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,115 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,029 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,592 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,542 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,478 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,967 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,794 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,785 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,337 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,474 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,256 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,068 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,021 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,477 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,533 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,842 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,421 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,273 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,816 |
| Widest Countries East to West | 0 | - | 4.93 | 118,678 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,671 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,840 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,084 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,753 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,618 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,477 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,244 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,852 |
| Countries with Double Letters | 0 | - | 4.96 | 66,732 |
| Countries that End in N | 0 | - | 4.94 | 131,183 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,644 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,473 |
| Countries with W | 0 | - | 4.97 | 121,475 |
| Countries with Z | 0 | - | 4.98 | 242,217 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,483 |
| Countries That End in U | 0 | - | 4.94 | 106,836 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,192 |
| Countries that End in O | 0 | - | 4.92 | 146,312 |
| Countries that End in R | 0 | - | 4.86 | 96,073 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,826 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,475 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,822 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,543 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,471 |
| Countries That End in Y | 0 | - | 4.90 | 160,770 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,577 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,783 |
| Countries that End in I | 0 | - | 4.92 | 114,128 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,357 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,784 |
| Countries That End in NIA | 0 | - | 4.93 | 100,303 |
| Countries That End in BIA | 0 | - | 4.91 | 125,300 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,332 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,016 |
| Countries That End in RIA | 0 | - | 4.89 | 100,441 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,715 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,587 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,589 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,391 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,310 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,502 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,359 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,747 |
| Countries that End in L | 0 | - | 4.95 | 133,315 |
| "Land" Countries | 0 | - | 4.98 | 287,838 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,723 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,067 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,672 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,453 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,067 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,120 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,915 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,641 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,566 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,904 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,911 |
