| Landlocked Countries Quiz | 0 | - | 4.99 | 402,013 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,925,037 |
| Sahara Desert Countries | 0 | - | 4.97 | 155,198 |
| Himalayan Countries | 0 | - | 4.95 | 130,668 |
| Andean Countries | 0 | - | 4.94 | 79,997 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 60,272 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 119,603 |
| Coffee Producing Countries | 0 | - | 4.81 | 63,717 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 62,764 |
| Danube Countries | 0 | - | 4.97 | 63,157 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 100,025 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 84,123 |
| Countries with the Worst Passports | 0 | - | 4.93 | 79,869 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 144,415 |
| European Landlocked Countries | 0 | - | 4.99 | 143,969 |
| Partially Recognized Countries | 0 | - | 4.98 | 102,794 |
| Countries with the Most Species | 0 | - | 4.99 | 94,128 |
| Countries 197 to 205 | 0 | - | 4.88 | 67,197 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 52,670 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,858 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,018 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 71,615 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 55,784 |
| Countries in the Alps | 0 | - | 4.87 | 114,700 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 93,173 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 102,551 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,113 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 93,789 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 113,632 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 93,843 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 97,779 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 51,712 |
| Largest Country by Body of Water | 0 | - | 4.96 | 49,471 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 60,845 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 52,551 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,344 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 102,270 |
| Arctic Ocean Countries | 0 | - | 4.95 | 77,716 |
| Countries with the Most Grassland | 0 | - | 4.93 | 75,643 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 114,106 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 66,594 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 58,351 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 42,676 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 232,843 |
| World Countries - Blind Typing | 0 | - | 5.00 | 101,856 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 46,707 |
| Largest Countries By Category | 0 | - | 4.97 | 154,666 |
| Countries by Countries | 0 | - | 4.96 | 60,851 |
| Country Flags with the Most White | 0 | - | 4.87 | 135,402 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,496 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 46,958 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 86,346 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,627,035 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 367,882 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 393,643 |
| Island Countries Quiz | 0 | - | 4.99 | 702,509 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,022,367 |
| Northernmost Countries | 0 | - | 4.99 | 349,922 |
| Countries of South America | 0 | - | 5.00 | 896,180 |
| Countries of Oceania | 0 | - | 5.00 | 1,016,742 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,804,067 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 167,206 |
| Countries with Megacities | 0 | - | 4.99 | 228,153 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 193,402 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 109,854 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 132,182 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 77,470 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 313,264 |
| Countries by Official Language | 0 | - | 4.95 | 189,564 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 289,254 |
| Countries in their Native Language | 0 | - | 4.99 | 193,533 |
| Independence from Whom | 0 | - | 4.99 | 206,088 |
| Subdivisions by Country | 0 | - | 4.86 | 49,537 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 128,040 |
| Megadiverse Countries | 0 | - | 4.97 | 132,910 |
| Countries With the Most English Speakers | 0 | - | 4.88 | 127,294 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,323 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 123,753 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,431 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 50,004 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 159,273 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,099 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 90,760 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 151,889 |
| Countries with Multiple Populous Islands | 0 | - | 4.88 | 93,601 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,274 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 72,785 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 106,126 |
| Countries Furthest from the United States | 0 | - | 4.94 | 87,645 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,771 |
| Straight Shot to the Arctic Circle | 0 | - | 4.87 | 73,847 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,105 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,329,685 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 104,889 |
| World Map Quiz | 0 | - | 4.84 | 61,431 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 146,441 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 104,379 |
| Southernmost Countries of the World | 0 | - | 4.99 | 223,584 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 102,304 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 120,181 |
| Countries With the Most Languages | 0 | - | 4.89 | 195,941 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 108,238 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 91,678 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 96,899 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 60,080 |
| Tallest Countries North to South | 0 | - | 4.83 | 118,182 |
| Widest Countries East to West | 0 | - | 4.92 | 127,220 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,870 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 183,582 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,811 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 92,669 |
| Largest Countries as a Percent of Continent | 0 | - | 4.98 | 146,027 |
| Countries with the Most Desert | 0 | - | 4.93 | 125,695 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,719 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,277 |
| Countries with Double Letters | 0 | - | 4.97 | 89,436 |
| Countries that End in N | 0 | - | 4.93 | 152,610 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 254,111 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 206,694 |
| Countries with W | 0 | - | 4.97 | 155,039 |
| Countries with Z | 0 | - | 4.98 | 283,065 |
| Countries with Letters Missing | 0 | - | 4.97 | 181,587 |
| Countries That End in U | 0 | - | 4.95 | 117,648 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 105,845 |
| Countries that End in O | 0 | - | 4.92 | 156,981 |
| Countries that End in R | 0 | - | 4.84 | 101,623 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 153,940 |
| Countries Ending in "IA" | 0 | - | 4.99 | 204,145 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 167,124 |
| Countries by Last Two Letters | 0 | - | 4.87 | 133,117 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 139,045 |
| Countries That End in Y | 0 | - | 4.91 | 184,071 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 194,061 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 149,793 |
| Countries that End in I | 0 | - | 4.93 | 118,811 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 179,860 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 94,201 |
| Countries That End in NIA | 0 | - | 4.92 | 107,788 |
| Countries That End in BIA | 0 | - | 4.92 | 146,136 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 164,187 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 117,116 |
| Countries That End in RIA | 0 | - | 4.92 | 124,822 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 108,555 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 221,748 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 130,613 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 122,819 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 88,457 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,988 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 50,839 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 100,987 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 122,852 |
| Countries that are Free from U.S.A. | 0 | - | 4.88 | 47,944 |
| Countries with the Word "And" | 0 | - | 4.99 | 114,343 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 50,978 |
| Countries that End in L | 0 | - | 4.94 | 154,284 |
| "Land" Countries | 0 | - | 4.98 | 303,972 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 202,843 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,580 |
| City to Country Quiz #1 | 0 | - | 4.97 | 153,672 |
| City to Country Quiz #3 | 0 | - | 4.88 | 107,649 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 77,355 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 224,744 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 196,698 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 124,327 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 160,149 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 220,362 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 149,756 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,900 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 107,213 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 85,708 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 61,175 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,412,538 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 371,574 |
| One Border Countries | 0 | - | 4.98 | 454,774 |
| Top Producing Countries | 0 | - | 4.63 | 115,395 |
| Country Codes Quiz | 0 | - | 4.45 | 81,603 |
| Countries on the Equator | 0 | - | 4.63 | 139,249 |
| Members of the Arab League | 0 | - | 4.78 | 75,203 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,045 |
| Separatist Movements | 0 | - | 4.44 | 45,240 |
| Countries with the Best Passports | 0 | - | 4.75 | 83,560 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,340 |
| Next Country Alphabetically | 0 | - | 4.70 | 85,041 |
| Westernmost Countries | 0 | - | 4.50 | 49,168 |
| Easternmost Countries | 0 | - | 4.74 | 62,316 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,130 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 106,698 |
| Indochina Countries | 0 | - | 4.72 | 65,467 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,345 |
| Countries With the Most Conflict Deaths | 0 | - | 4.62 | 95,249 |
| Highest Foreign Aid Recipients | 0 | - | 4.68 | 43,698 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,722 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,870 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,950 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 59,978 |
| Countries 206 to 242 | 0 | - | 4.70 | 33,338 |
| Most Populous Countries By Category | 0 | - | 4.55 | 84,198 |
| Countries with the Most Turkic People | 0 | - | 4.74 | 44,932 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,697 |
| Flyover Countries | 0 | - | 4.64 | 50,098 |
