| Landlocked Countries Quiz | 0 | - | 4.99 | 390,126 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,889,144 |
| Sahara Desert Countries | 0 | - | 4.97 | 149,267 |
| Himalayan Countries | 0 | - | 4.94 | 125,412 |
| Andean Countries | 0 | - | 4.93 | 70,614 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,137 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,604 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,501 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,614 |
| Danube Countries | 0 | - | 4.97 | 61,705 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,061 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,723 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,413 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 141,080 |
| European Landlocked Countries | 0 | - | 4.99 | 142,104 |
| Partially Recognized Countries | 0 | - | 4.98 | 99,881 |
| Countries with the Most Species | 0 | - | 4.99 | 93,165 |
| Countries 197 to 205 | 0 | - | 4.87 | 64,811 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,091 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,171 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,048 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,563 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,466 |
| Countries in the Alps | 0 | - | 4.86 | 112,031 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,612 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,491 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,066 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 84,528 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,704 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,649 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,172 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,504 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,493 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,526 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,741 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,538 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,833 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,504 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,324 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 110,937 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,462 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,378 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,616 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 226,323 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,596 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,711 |
| Largest Countries By Category | 0 | - | 4.97 | 152,519 |
| Countries by Countries | 0 | - | 4.96 | 59,203 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,275 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,955 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,834 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,450,558 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,526,310 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 362,707 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 386,608 |
| Island Countries Quiz | 0 | - | 4.99 | 695,311 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,006,133 |
| Northernmost Countries | 0 | - | 4.99 | 344,984 |
| Countries of South America | 0 | - | 5.00 | 874,605 |
| Countries of Oceania | 0 | - | 5.00 | 990,253 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,756,021 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,536 |
| Countries with Megacities | 0 | - | 4.99 | 222,126 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,454 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,613 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,790 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,013 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 300,865 |
| Countries by Official Language | 0 | - | 4.95 | 186,039 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 284,577 |
| Countries in their Native Language | 0 | - | 4.98 | 190,382 |
| Independence from Whom | 0 | - | 4.99 | 202,478 |
| Subdivisions by Country | 0 | - | 4.85 | 48,940 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,630 |
| Megadiverse Countries | 0 | - | 4.97 | 131,254 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 123,956 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,371 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,682 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,494 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,575 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 156,881 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,238 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,632 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,146 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,063 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,633 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 69,619 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,298 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,479 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,960 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,675 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,189 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,285,337 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 100,584 |
| World Map Quiz | 0 | - | 4.87 | 59,092 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,784 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,299 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 99,936 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,740 |
| Countries With the Most Languages | 0 | - | 4.89 | 191,866 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 97,322 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,561 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 94,746 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,980 |
| Tallest Countries North to South | 0 | - | 4.84 | 116,593 |
| Widest Countries East to West | 0 | - | 4.92 | 125,687 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,422 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,524 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,966 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 91,120 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,237 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,103 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,281 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,816 |
| Countries with Double Letters | 0 | - | 4.97 | 85,756 |
| Countries that End in N | 0 | - | 4.94 | 149,271 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 249,742 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 203,420 |
| Countries with W | 0 | - | 4.97 | 152,320 |
| Countries with Z | 0 | - | 4.98 | 279,366 |
| Countries with Letters Missing | 0 | - | 4.97 | 179,030 |
| Countries That End in U | 0 | - | 4.95 | 116,098 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 103,047 |
| Countries that End in O | 0 | - | 4.92 | 155,728 |
| Countries that End in R | 0 | - | 4.83 | 100,801 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,712 |
| Countries Ending in "IA" | 0 | - | 4.99 | 200,428 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 165,351 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,542 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,443 |
| Countries That End in Y | 0 | - | 4.91 | 182,894 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,623 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 147,621 |
| Countries that End in I | 0 | - | 4.92 | 118,120 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 175,835 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,093 |
| Countries That End in NIA | 0 | - | 4.92 | 106,528 |
| Countries That End in BIA | 0 | - | 4.92 | 144,544 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,382 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,741 |
| Countries That End in RIA | 0 | - | 4.92 | 119,978 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,028 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 218,005 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 128,657 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,609 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,494 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,989 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,564 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,194 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 121,127 |
| Countries that are Free from U.S.A. | 0 | - | 4.88 | 47,006 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 49,121 |
| Countries that End in L | 0 | - | 4.94 | 152,992 |
| "Land" Countries | 0 | - | 4.98 | 301,243 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 198,971 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,239 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,421 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,480 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,207 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 221,760 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 194,337 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,262 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 158,302 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 218,059 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 148,257 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,312 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,357 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,199 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,306 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,393,127 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,241 |
| One Border Countries | 0 | - | 4.98 | 448,241 |
| Top Producing Countries | 0 | - | 4.64 | 114,469 |
| Country Codes Quiz | 0 | - | 4.45 | 81,016 |
| Countries on the Equator | 0 | - | 4.70 | 138,429 |
| Members of the Arab League | 0 | - | 4.78 | 74,886 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 68,431 |
| Separatist Movements | 0 | - | 4.44 | 44,789 |
| Countries with the Best Passports | 0 | - | 4.79 | 82,266 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,005 |
| Next Country Alphabetically | 0 | - | 4.70 | 84,246 |
| Westernmost Countries | 0 | - | 4.49 | 48,927 |
| Easternmost Countries | 0 | - | 4.74 | 61,966 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 38,793 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 105,088 |
| Indochina Countries | 0 | - | 4.70 | 64,959 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,145 |
| Countries With the Most Conflict Deaths | 0 | - | 4.68 | 94,705 |
| Highest Foreign Aid Recipients | 0 | - | 4.64 | 43,503 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,472 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,502 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,375 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 59,393 |
| Countries 206 to 242 | 0 | - | 4.74 | 32,871 |
| Most Populous Countries By Category | 0 | - | 4.55 | 64,357 |
| Countries with the Most Turkic People | 0 | - | 4.74 | 44,439 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,118 |
| Flyover Countries | 0 | - | 4.64 | 49,626 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 71,430 |
| Countries with the Most Coral Reefs | 0 | - | 4.75 | 47,465 |
