| Landlocked Countries | 0 | - | 4.99 | 422,851 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,651,307 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,950 |
| Himalayan Countries | 0 | - | 4.95 | 139,117 |
| Andean Countries | 0 | - | 4.93 | 84,848 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,067 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,176 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,650 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,963 |
| Danube Countries | 0 | - | 4.97 | 72,121 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,165 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,522 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,502 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,002 |
| European Landlocked Countries | 0 | - | 4.99 | 147,261 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,807 |
| Countries with the Most Species | 0 | - | 4.99 | 103,329 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,935 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,644 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,760 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,609 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,347 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,769 |
| Countries in the Alps | 0 | - | 4.87 | 118,339 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,670 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,244 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,736 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,695 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,614 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,028 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,785 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,586 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,236 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,941 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,704 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,584 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,312 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,554 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,622 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,115 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,385 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,638 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,228 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,406 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,390 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,299 |
| Largest Countries By Category | 0 | - | 4.97 | 158,368 |
| Countries by Countries | 0 | - | 4.96 | 63,339 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,808 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,317 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,589 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,769 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,784,831 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,377 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,784 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,865 |
| Island Countries | 0 | - | 4.99 | 711,353 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,978 |
| Northernmost Countries | 0 | - | 4.99 | 362,390 |
| Countries of South America | 0 | - | 5.00 | 928,592 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,429 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,992 |
| "Land" Countries | 0 | - | 4.98 | 337,589 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,151 |
| Countries with Megacities | 0 | - | 4.99 | 265,190 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,973 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,614 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,234 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,685 |
| Countries by Official Language | 0 | - | 4.95 | 195,438 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,624 |
| Countries in their Native Language | 0 | - | 4.99 | 199,210 |
| Independence from Whom | 0 | - | 4.99 | 212,300 |
| Subdivisions by Country | 0 | - | 4.87 | 50,475 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,882 |
| Megadiverse Countries | 0 | - | 4.96 | 135,083 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,237 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,400 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,280 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,137 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,248 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,649 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,587 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,406 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,701 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,178 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,875 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,939 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,257 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,009 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,408 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,538 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,826 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,480 |
| World Map Quiz | 0 | - | 4.81 | 65,221 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,731 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,436 |
| Countries by Founding Story | 0 | - | 4.95 | 77,444 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,274 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,379 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,093 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,492 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,989 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,095 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,378 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,489 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,636 |
| Widest Countries East to West | 0 | - | 4.92 | 129,735 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,476 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,491 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,192 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,824 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,677 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,953 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,405 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,816 |
| Countries with Double Letters | 0 | - | 4.96 | 96,434 |
| Countries that End in N | 0 | - | 4.95 | 171,316 |
| Countries with Five Letters | 0 | - | 4.96 | 282,839 |
| Countries with Six Letters | 0 | - | 4.94 | 213,768 |
| Countries with W | 0 | - | 4.96 | 160,470 |
| Countries with Z | 0 | - | 4.98 | 291,678 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,834 |
| Countries That End in U | 0 | - | 4.95 | 120,921 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,601 |
| Countries that End in O | 0 | - | 4.92 | 159,577 |
| Countries that End in R | 0 | - | 4.87 | 119,013 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,769 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,278 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,787 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,560 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,470 |
| Countries That End in Y | 0 | - | 4.91 | 185,930 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,037 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,958 |
| Countries that End in I | 0 | - | 4.94 | 135,156 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,223 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,868 |
| Countries That End in NIA | 0 | - | 4.92 | 109,846 |
| Countries That End in BIA | 0 | - | 4.93 | 149,290 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,201 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,501 |
| Countries That End in RIA | 0 | - | 4.93 | 126,872 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,089 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,846 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,820 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,255 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,803 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,632 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,095 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,465 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,610 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,479 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,391 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,079 |
| Countries that End in L | 0 | - | 4.94 | 156,906 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,184 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,286 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,082 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,009 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,052 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,913 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,781 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,212 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,922 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,586 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,946 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,133 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,731 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,935 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,602 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,322 |
| One Border Countries | 0 | - | 4.98 | 470,362 |
| Top Producing Countries | 0 | - | 4.63 | 116,290 |
| ISO Country Codes | 0 | - | 4.49 | 91,433 |
| Countries on the Equator | 0 | - | 4.63 | 141,047 |
| Members of the Arab League | 0 | - | 4.77 | 75,658 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,957 |
| Separatist Movements | 0 | - | 4.45 | 45,937 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,347 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,850 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,317 |
| Westernmost Countries | 0 | - | 4.43 | 62,473 |
| Easternmost Countries | 0 | - | 4.75 | 62,999 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,697 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,749 |
| Indochina Countries | 0 | - | 4.74 | 66,252 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,653 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,400 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,993 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,127 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,432 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,753 |
| Countries that are the Source of Refugees | 0 | - | 4.78 | 73,769 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,991 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,517 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,757 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,652 |
| Flyover Countries | 0 | - | 4.69 | 50,887 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 74,069 |
