| Landlocked Countries | 0 | - | 4.99 | 421,381 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,534,876 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,160 |
| Himalayan Countries | 0 | - | 4.95 | 138,453 |
| Andean Countries | 0 | - | 4.93 | 84,454 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,652 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,621 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,287 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,690 |
| Danube Countries | 0 | - | 4.97 | 71,939 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,926 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,354 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,174 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,637 |
| European Landlocked Countries | 0 | - | 4.99 | 147,065 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,519 |
| Countries with the Most Species | 0 | - | 4.99 | 103,175 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,670 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,547 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,694 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,498 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,179 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,593 |
| Countries in the Alps | 0 | - | 4.87 | 118,107 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,677 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,923 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,603 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,537 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,423 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,895 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,590 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,442 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,139 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,791 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,615 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,480 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,162 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,417 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,453 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,743 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,246 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,177 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,968 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,633 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,925 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,171 |
| Largest Countries By Category | 0 | - | 4.97 | 158,096 |
| Countries by Countries | 0 | - | 4.96 | 63,128 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,601 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,254 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,544 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,611 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,774,335 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,082 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,337 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,849 |
| Island Countries | 0 | - | 4.99 | 710,821 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,071 |
| Northernmost Countries | 0 | - | 4.99 | 361,687 |
| Countries of South America | 0 | - | 5.00 | 926,440 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,765 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,296 |
| "Land" Countries | 0 | - | 4.98 | 337,146 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,739 |
| Countries with Megacities | 0 | - | 4.99 | 264,187 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,590 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,390 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,849 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,451 |
| Countries by Official Language | 0 | - | 4.95 | 195,128 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,204 |
| Countries in their Native Language | 0 | - | 4.99 | 198,923 |
| Independence from Whom | 0 | - | 4.99 | 211,947 |
| Subdivisions by Country | 0 | - | 4.86 | 50,400 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,628 |
| Megadiverse Countries | 0 | - | 4.96 | 134,960 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,972 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,316 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,976 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,088 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,036 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,559 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,374 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,996 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,611 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,077 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,555 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,843 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,162 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,930 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,317 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,462 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,163 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,011 |
| World Map Quiz | 0 | - | 4.81 | 65,009 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,949 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,291 |
| Countries by Founding Story | 0 | - | 4.95 | 77,313 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,975 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,209 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,932 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,048 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,822 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,957 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,251 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,408 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,524 |
| Widest Countries East to West | 0 | - | 4.92 | 129,589 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,436 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,317 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,098 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,725 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,522 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,799 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,350 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,789 |
| Countries with Double Letters | 0 | - | 4.96 | 96,079 |
| Countries that End in N | 0 | - | 4.95 | 170,964 |
| Countries with Five Letters | 0 | - | 4.96 | 282,150 |
| Countries with Six Letters | 0 | - | 4.94 | 213,385 |
| Countries with W | 0 | - | 4.97 | 160,208 |
| Countries with Z | 0 | - | 4.98 | 291,266 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,566 |
| Countries That End in U | 0 | - | 4.95 | 120,774 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,334 |
| Countries that End in O | 0 | - | 4.92 | 159,462 |
| Countries that End in R | 0 | - | 4.87 | 118,925 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,685 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,942 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,604 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,407 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,322 |
| Countries That End in Y | 0 | - | 4.91 | 185,835 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,806 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,769 |
| Countries that End in I | 0 | - | 4.94 | 135,047 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,983 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,769 |
| Countries That End in NIA | 0 | - | 4.92 | 109,722 |
| Countries That End in BIA | 0 | - | 4.93 | 149,129 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,026 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,359 |
| Countries That End in RIA | 0 | - | 4.93 | 126,766 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,948 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,416 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,602 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,994 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,567 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,539 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,956 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,427 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,461 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,383 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,204 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,898 |
| Countries that End in L | 0 | - | 4.94 | 156,769 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,399 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,245 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,974 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,902 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,947 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,631 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,570 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,922 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,453 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,332 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,812 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,066 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,685 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,836 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,199 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,739 |
| One Border Countries | 0 | - | 4.98 | 469,512 |
| Top Producing Countries | 0 | - | 4.63 | 116,242 |
| ISO Country Codes | 0 | - | 4.48 | 91,061 |
| Countries on the Equator | 0 | - | 4.63 | 140,800 |
| Members of the Arab League | 0 | - | 4.77 | 75,625 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,893 |
| Separatist Movements | 0 | - | 4.45 | 45,892 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,229 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,818 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,260 |
| Westernmost Countries | 0 | - | 4.43 | 62,376 |
| Easternmost Countries | 0 | - | 4.75 | 62,912 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,651 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,612 |
| Indochina Countries | 0 | - | 4.74 | 66,179 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,626 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,351 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,976 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,091 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,388 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,688 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 63,133 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,945 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,437 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,704 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,581 |
| Flyover Countries | 0 | - | 4.69 | 50,810 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,938 |
