| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,391 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,481 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,731 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,528 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,267 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,292 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,603 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,251 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,526 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,140,491 |
| Landlocked Countries | 0 | - | 4.99 | 416,365 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,855 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,746 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,933 |
| Countries with Glaciers | 0 | - | 4.97 | 104,834 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,849 |
| Most Forested European Countries | 0 | - | 4.80 | 75,089 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,475 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,538 |
| Coldest Countries | 0 | - | 4.97 | 138,047 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,131 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,943 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,682 |
| Countries with the Most Nobel Prizes | 0 | - | 4.87 | 90,300 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,495 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,738,486 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,882 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,789 |
| Himalayan Countries | 0 | - | 4.95 | 136,382 |
| Andean Countries | 0 | - | 4.95 | 83,419 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,682 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,908 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,372 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,975 |
| Danube Countries | 0 | - | 4.97 | 71,369 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,161 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,826 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,098 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,047 |
| European Landlocked Countries | 0 | - | 4.99 | 146,099 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,712 |
| Countries with the Most Species | 0 | - | 4.99 | 100,612 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,856 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,315 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,491 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,134 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,789 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,162 |
| Countries in the Alps | 0 | - | 4.86 | 117,296 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,874 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,823 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,233 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,711 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,782 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,224 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,952 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,974 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,778 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,310 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,341 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,193 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,699 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,972 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,980 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,653 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,872 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,406 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,201 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,831 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,493 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,797 |
| Largest Countries By Category | 0 | - | 4.97 | 157,215 |
| Countries by Countries | 0 | - | 4.96 | 62,566 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,057 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,833 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,681 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,975 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,799 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,945 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,145 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,638 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,049 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,591 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,701 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,554 |
| Island Countries | 0 | - | 4.99 | 708,717 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,727 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,974 |
| Northernmost Countries | 0 | - | 4.99 | 359,223 |
| Countries of South America | 0 | - | 5.00 | 919,285 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,163 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,738 |
| "Land" Countries | 0 | - | 4.98 | 334,449 |
| Least Forested European Countries | 0 | - | 4.25 | 53,876 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,193 |
| Countries with Megacities | 0 | - | 4.99 | 248,767 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,048 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,503 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,421 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,451 |
| Countries by Official Language | 0 | - | 4.95 | 193,920 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,416 |
| Countries in their Native Language | 0 | - | 4.99 | 197,552 |
| Independence from Whom | 0 | - | 4.99 | 210,590 |
| Subdivisions by Country | 0 | - | 4.86 | 50,185 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,271 |
| Megadiverse Countries | 0 | - | 4.96 | 134,518 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,752 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,068 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,615 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,942 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,414 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,195 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,524 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,522 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,354 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,801 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,122 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,570 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,669 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,631 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,836 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,185 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,454 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,667 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,006 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,634 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,365 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,621 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,229 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,427 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,599 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,131 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,618 |
| Widest Countries East to West | 0 | - | 4.92 | 129,119 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,320 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,612 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,901 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,934 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,953 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,330 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,042 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,663 |
| Countries with Double Letters | 0 | - | 4.96 | 93,948 |
| Countries that End in N | 0 | - | 4.94 | 162,035 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,383 |
| Countries with Six Letters | 0 | - | 4.93 | 210,970 |
| Countries with W | 0 | - | 4.97 | 158,652 |
| Countries with Z | 0 | - | 4.98 | 288,575 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,936 |
| Countries That End in U | 0 | - | 4.95 | 119,797 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,075 |
| Countries that End in O | 0 | - | 4.92 | 158,779 |
| Countries that End in R | 0 | - | 4.87 | 118,460 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,993 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,644 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,685 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,765 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,336 |
| Countries That End in Y | 0 | - | 4.90 | 185,368 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,777 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,036 |
| Countries that End in I | 0 | - | 4.94 | 134,629 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,642 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,382 |
| Countries That End in NIA | 0 | - | 4.92 | 109,262 |
| Countries That End in BIA | 0 | - | 4.93 | 148,500 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,382 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,737 |
| Countries That End in RIA | 0 | - | 4.93 | 126,301 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,289 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,002 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,815 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,163 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,730 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,113 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,397 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,910 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,971 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,150 |
| Countries that End in L | 0 | - | 4.94 | 156,242 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,739 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,048 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,700 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,542 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,600 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,253 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,772 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,250 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,788 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,204 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,025 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,858 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,282 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,503 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,491 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,812,205 |
| One Border Countries | 0 | - | 4.98 | 466,262 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,544 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,602,683 |
