| Landlocked Countries Quiz | 0 | - | 4.99 | 318,036 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,508,509 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.96 | 161,566 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 95,799 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 84,676 |
| Countries on the Equator | 0 | - | 4.82 | 132,846 |
| Members of the Arab League | 0 | - | 4.82 | 59,462 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,282 |
| Himalayan Countries | 0 | - | 4.95 | 102,631 |
| Andean Countries | 0 | - | 4.90 | 57,025 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,869 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,619 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,948 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,585 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,780 |
| Danube Countries | 0 | - | 4.97 | 56,377 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,426 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,620 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,421 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,835 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,454 |
| European Landlocked Countries | 0 | - | 4.99 | 114,861 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,809 |
| Countries with the Most Species | 0 | - | 4.99 | 89,099 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,881 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,461 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,830 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,801 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,147 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,477 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,722 |
| Countries in the Alps | 0 | - | 4.82 | 101,904 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,712 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,900 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,158 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,777 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,418 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,107 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,103 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,788 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,086 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,207 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,948 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,346 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,437 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,021 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,541 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,024 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,735 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 60,985 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,992 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,071 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,529 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,990 |
| Largest Countries By Category | 0 | - | 4.96 | 143,976 |
| Countries by Countries | 0 | - | 4.96 | 54,139 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,024,058 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,768 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,404 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,434 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,801 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,125 |
| Island Countries Quiz | 0 | - | 4.99 | 639,122 |
| Biggest Countries by Area | 0 | - | 5.00 | 925,579 |
| Northernmost Countries | 0 | - | 4.99 | 325,480 |
| Countries of South America | 0 | - | 5.00 | 784,510 |
| Countries of Oceania | 0 | - | 5.00 | 883,142 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,113,234 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,553,833 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,319 |
| Countries with Megacities | 0 | - | 4.99 | 194,988 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,650 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,958 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,826 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,810 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,330 |
| Countries by Official Language | 0 | - | 4.95 | 153,602 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,993 |
| Countries in their Native Language | 0 | - | 4.98 | 177,105 |
| Independence from Whom | 0 | - | 4.99 | 183,863 |
| Subdivisions by Country | 0 | - | 4.82 | 46,205 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,310 |
| Megadiverse Countries | 0 | - | 4.96 | 124,816 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,083 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,061 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,148 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,169 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,774 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,932 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,365 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,544 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,999 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,063 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,863 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,401 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,516 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,977 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,794 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,334 |
| World Map Quiz | 0 | - | 4.90 | 48,223 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 110,910 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,823 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,460 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,196 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,150 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,774 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,618 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,938 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,552 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,362 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,901 |
| Widest Countries East to West | 0 | - | 4.93 | 118,786 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,692 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,977 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,133 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,853 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,173 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,582 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,275 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,878 |
| Countries with Double Letters | 0 | - | 4.96 | 67,106 |
| Countries that End in N | 0 | - | 4.94 | 131,551 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 228,029 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,807 |
| Countries with W | 0 | - | 4.97 | 121,813 |
| Countries with Z | 0 | - | 4.98 | 242,766 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,724 |
| Countries That End in U | 0 | - | 4.94 | 107,045 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,448 |
| Countries that End in O | 0 | - | 4.92 | 146,475 |
| Countries that End in R | 0 | - | 4.86 | 96,165 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,917 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,718 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,961 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,650 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,588 |
| Countries That End in Y | 0 | - | 4.90 | 160,849 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,764 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,925 |
| Countries that End in I | 0 | - | 4.92 | 114,203 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,551 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,861 |
| Countries That End in NIA | 0 | - | 4.93 | 100,377 |
| Countries That End in BIA | 0 | - | 4.91 | 125,437 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,474 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,118 |
| Countries That End in RIA | 0 | - | 4.89 | 100,517 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,817 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,920 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,749 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 109,549 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,468 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,615 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,998 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,432 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,881 |
| Countries that End in L | 0 | - | 4.95 | 133,440 |
| "Land" Countries | 0 | - | 4.98 | 288,037 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,890 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,083 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,821 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,799 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,156 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,380 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 157,570 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,753 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,703 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 192,131 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,037 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,455 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,704 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,931 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,618 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,303,100 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,715 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,038,098 |
| One Border Countries | 0 | - | 4.98 | 406,868 |
| Countries with the Highest Elevation with Exceptions | 0 | - | 4.73 | 57,068 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,271 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,360,887 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,425 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,602 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,296 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,523 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,483 |
| Countries by National Anthem | 0 | - | 4.94 | 61,649 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,877 |
| EU Countries Quiz | 0 | - | 4.99 | 226,315 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,730 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,209 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,658 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,504 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,187 |
| German-Speaking Countries | 0 | - | 4.88 | 117,192 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,367 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,729 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 127,929 |
| Top Five Countries by Religion | 0 | - | 4.91 | 140,239 |
| Solve the Secret Country #2 | 0 | - | 4.91 | 86,400 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 81,122 |
