| Landlocked Countries | 0 | - | 4.99 | 422,484 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,622,241 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,767 |
| Himalayan Countries | 0 | - | 4.95 | 138,963 |
| Andean Countries | 0 | - | 4.93 | 84,754 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,976 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,038 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,577 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,905 |
| Danube Countries | 0 | - | 4.97 | 72,083 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,103 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,480 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,426 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,904 |
| European Landlocked Countries | 0 | - | 4.99 | 147,209 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,744 |
| Countries with the Most Species | 0 | - | 4.99 | 103,290 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,861 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,626 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,743 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,583 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,290 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,722 |
| Countries in the Alps | 0 | - | 4.87 | 118,287 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,438 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,145 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,706 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,652 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,573 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,993 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,734 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,555 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,210 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,911 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,686 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,562 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,272 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,526 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,588 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,022 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,357 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,368 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,159 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,197 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,276 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,273 |
| Largest Countries By Category | 0 | - | 4.97 | 158,311 |
| Countries by Countries | 0 | - | 4.96 | 63,302 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,757 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,305 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,578 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,731 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,782,391 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,988 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,650 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,660 |
| Island Countries | 0 | - | 4.99 | 711,217 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,481 |
| Northernmost Countries | 0 | - | 4.99 | 362,208 |
| Countries of South America | 0 | - | 5.00 | 928,051 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,819 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,849 |
| "Land" Countries | 0 | - | 4.98 | 337,477 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,034 |
| Countries with Megacities | 0 | - | 4.99 | 264,903 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,863 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,554 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,130 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,625 |
| Countries by Official Language | 0 | - | 4.95 | 195,350 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,512 |
| Countries in their Native Language | 0 | - | 4.99 | 199,139 |
| Independence from Whom | 0 | - | 4.99 | 212,227 |
| Subdivisions by Country | 0 | - | 4.87 | 50,449 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,817 |
| Megadiverse Countries | 0 | - | 4.96 | 135,057 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,187 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,385 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,264 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,124 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,196 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,625 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,541 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,066 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,683 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,162 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,775 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,917 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,230 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,993 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,380 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,517 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,929 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,334 |
| World Map Quiz | 0 | - | 4.81 | 65,164 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,551 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,398 |
| Countries by Founding Story | 0 | - | 4.95 | 77,414 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,188 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,335 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,044 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,356 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,940 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,053 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,337 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,472 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,609 |
| Widest Countries East to West | 0 | - | 4.92 | 129,701 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,469 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,437 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,141 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,799 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,630 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,915 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,390 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,813 |
| Countries with Double Letters | 0 | - | 4.96 | 96,335 |
| Countries that End in N | 0 | - | 4.95 | 171,230 |
| Countries with Five Letters | 0 | - | 4.96 | 282,686 |
| Countries with Six Letters | 0 | - | 4.94 | 213,666 |
| Countries with W | 0 | - | 4.97 | 160,402 |
| Countries with Z | 0 | - | 4.98 | 291,579 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,770 |
| Countries That End in U | 0 | - | 4.95 | 120,882 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,538 |
| Countries that End in O | 0 | - | 4.92 | 159,541 |
| Countries that End in R | 0 | - | 4.87 | 118,987 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,757 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,187 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,743 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,509 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,430 |
| Countries That End in Y | 0 | - | 4.91 | 185,898 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,992 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,908 |
| Countries that End in I | 0 | - | 4.94 | 135,125 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,165 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,845 |
| Countries That End in NIA | 0 | - | 4.92 | 109,819 |
| Countries That End in BIA | 0 | - | 4.93 | 149,246 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,154 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,462 |
| Countries That End in RIA | 0 | - | 4.93 | 126,838 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,049 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,737 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,767 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,197 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,747 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,602 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,064 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,458 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,562 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,452 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,333 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,034 |
| Countries that End in L | 0 | - | 4.94 | 156,875 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,991 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,281 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,053 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,981 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,030 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,834 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,713 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,175 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,891 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,527 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,907 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,122 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,720 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,900 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,975 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,172 |
| One Border Countries | 0 | - | 4.98 | 470,140 |
| Top Producing Countries | 0 | - | 4.63 | 116,277 |
| ISO Country Codes | 0 | - | 4.49 | 91,379 |
| Countries on the Equator | 0 | - | 4.63 | 140,952 |
| Members of the Arab League | 0 | - | 4.77 | 75,650 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,933 |
| Separatist Movements | 0 | - | 4.45 | 45,920 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,321 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,842 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,303 |
| Westernmost Countries | 0 | - | 4.43 | 62,450 |
| Easternmost Countries | 0 | - | 4.75 | 62,989 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,685 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,718 |
| Indochina Countries | 0 | - | 4.74 | 66,230 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,651 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,390 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,989 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,118 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,424 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,732 |
| Countries that are the Source of Refugees | 0 | - | 4.80 | 72,937 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,975 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,492 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,743 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,639 |
| Flyover Countries | 0 | - | 4.69 | 50,862 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 74,042 |
