| Landlocked Countries Quiz | 0 | - | 4.99 | 396,469 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,409,515 |
| Sahara Desert Countries | 0 | - | 4.98 | 152,394 |
| Himalayan Countries | 0 | - | 4.95 | 128,121 |
| Andean Countries | 0 | - | 4.93 | 72,173 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 59,331 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 117,617 |
| Coffee Producing Countries | 0 | - | 4.84 | 62,707 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 61,778 |
| Danube Countries | 0 | - | 4.97 | 62,471 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 99,103 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 83,484 |
| Countries with the Worst Passports | 0 | - | 4.93 | 77,904 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 142,839 |
| European Landlocked Countries | 0 | - | 4.99 | 143,222 |
| Partially Recognized Countries | 0 | - | 4.98 | 101,257 |
| Countries with the Most Species | 0 | - | 4.99 | 93,701 |
| Countries 197 to 205 | 0 | - | 4.88 | 66,121 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 52,376 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,568 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,591 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 71,088 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 55,162 |
| Countries in the Alps | 0 | - | 4.87 | 113,577 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 92,418 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 101,120 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,606 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 92,905 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 112,820 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 93,274 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,992 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 51,132 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 49,006 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 60,193 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 52,140 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,962 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 101,674 |
| Arctic Ocean Countries | 0 | - | 4.95 | 77,138 |
| Countries with the Most Grassland | 0 | - | 4.93 | 75,064 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 112,561 |
| Countries with the Most Climate Zones | 0 | - | 4.94 | 66,050 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,891 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 41,666 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 229,609 |
| World Countries - Blind Typing | 0 | - | 5.00 | 99,841 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 46,263 |
| Largest Countries By Category | 0 | - | 4.97 | 153,603 |
| Countries by Countries | 0 | - | 4.96 | 60,082 |
| Country Flags with the Most White | 0 | - | 4.86 | 134,304 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,217 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 85,579 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,487,631 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,576,002 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 365,147 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 390,119 |
| Island Countries Quiz | 0 | - | 4.99 | 698,964 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,014,254 |
| Northernmost Countries | 0 | - | 4.99 | 347,332 |
| Countries of South America | 0 | - | 5.00 | 885,088 |
| Countries of Oceania | 0 | - | 5.00 | 1,003,452 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,779,905 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 165,181 |
| Countries with Megacities | 0 | - | 4.99 | 225,149 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,480 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,748 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,494 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 76,271 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 308,428 |
| Countries by Official Language | 0 | - | 4.95 | 187,815 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 286,820 |
| Countries in their Native Language | 0 | - | 4.98 | 191,768 |
| Independence from Whom | 0 | - | 4.99 | 204,453 |
| Subdivisions by Country | 0 | - | 4.85 | 49,258 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 126,890 |
| Megadiverse Countries | 0 | - | 4.97 | 132,024 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 125,352 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,955 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 123,122 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,110 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,815 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 157,714 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,684 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 89,758 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,811 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,379 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,853 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 71,186 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,714 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,950 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,399 |
| Straight Shot to the Arctic Circle | 0 | - | 4.87 | 73,148 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,578 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,308,170 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 102,859 |
| World Map Quiz | 0 | - | 4.83 | 60,319 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 142,883 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 88,658 |
| Southernmost Countries of the World | 0 | - | 4.99 | 222,012 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 101,386 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 119,039 |
| Countries With the Most Languages | 0 | - | 4.89 | 193,972 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 106,508 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 90,827 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 95,930 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 59,592 |
| Tallest Countries North to South | 0 | - | 4.83 | 117,555 |
| Widest Countries East to West | 0 | - | 4.92 | 126,520 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,665 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 182,521 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,494 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 92,026 |
| Largest Countries as a Percent of Continent | 0 | - | 4.98 | 144,925 |
| Countries with the Most Desert | 0 | - | 4.93 | 125,042 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,528 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,055 |
| Countries with Double Letters | 0 | - | 4.97 | 87,763 |
| Countries that End in N | 0 | - | 4.93 | 151,210 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 251,988 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 205,237 |
| Countries with W | 0 | - | 4.97 | 153,819 |
| Countries with Z | 0 | - | 4.98 | 281,324 |
| Countries with Letters Missing | 0 | - | 4.97 | 180,422 |
| Countries That End in U | 0 | - | 4.95 | 116,953 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 104,559 |
| Countries that End in O | 0 | - | 4.92 | 156,384 |
| Countries that End in R | 0 | - | 4.83 | 101,272 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 153,179 |
| Countries Ending in "IA" | 0 | - | 4.99 | 202,154 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 166,301 |
| Countries by Last Two Letters | 0 | - | 4.88 | 132,325 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 138,284 |
| Countries That End in Y | 0 | - | 4.91 | 183,681 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 193,046 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.93 | 148,869 |
| Countries that End in I | 0 | - | 4.92 | 118,498 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 178,843 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,748 |
| Countries That End in NIA | 0 | - | 4.92 | 107,296 |
| Countries That End in BIA | 0 | - | 4.92 | 145,472 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 163,265 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 116,451 |
| Countries That End in RIA | 0 | - | 4.92 | 124,245 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,805 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 219,875 |
| Divided Country Name Puzzle #2 | 0 | - | 4.98 | 129,618 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 121,731 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 87,492 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,518 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 50,236 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 100,318 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 122,010 |
| Countries that are Free from U.S.A. | 0 | - | 4.88 | 47,495 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 50,128 |
| Countries that End in L | 0 | - | 4.94 | 153,631 |
| "Land" Countries | 0 | - | 4.98 | 302,974 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 200,496 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,416 |
| City to Country Quiz #1 | 0 | - | 4.96 | 152,977 |
| City to Country Quiz #3 | 0 | - | 4.88 | 106,915 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,899 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 223,234 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 195,323 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,781 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 159,090 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 219,290 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 149,156 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,616 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,687 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,471 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,738 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,402,503 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 369,217 |
| One Border Countries | 0 | - | 4.97 | 451,100 |
| Top Producing Countries | 0 | - | 4.63 | 114,973 |
| Country Codes Quiz | 0 | - | 4.45 | 81,332 |
| Countries on the Equator | 0 | - | 4.69 | 138,833 |
| Members of the Arab League | 0 | - | 4.78 | 75,048 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 68,748 |
| Separatist Movements | 0 | - | 4.44 | 45,025 |
| Countries with the Best Passports | 0 | - | 4.79 | 82,932 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,180 |
| Next Country Alphabetically | 0 | - | 4.70 | 84,496 |
| Westernmost Countries | 0 | - | 4.50 | 49,054 |
| Easternmost Countries | 0 | - | 4.74 | 62,142 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 38,975 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 106,086 |
| Indochina Countries | 0 | - | 4.70 | 65,230 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,240 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 94,971 |
| Highest Foreign Aid Recipients | 0 | - | 4.64 | 43,613 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,587 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,675 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,663 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 59,696 |
| Countries 206 to 242 | 0 | - | 4.70 | 33,152 |
| Most Populous Countries By Category | 0 | - | 4.56 | 83,744 |
| Countries with the Most Turkic People | 0 | - | 4.74 | 44,687 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,415 |
| Flyover Countries | 0 | - | 4.63 | 49,853 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 71,945 |
