| Countries of the World Quiz | 0 | - | 5.00 | 46,903,369 |
| Countries by Emojis | 0 | - | 4.99 | 236,096 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,910 |
| Landlocked Countries | 0 | - | 4.99 | 413,412 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,889 |
| Countries as U.S. First Names | 0 | - | 4.31 | 77,328 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,632 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,055 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,737 |
| Island Countries | 0 | - | 4.99 | 707,541 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,499 |
| Himalayan Countries | 0 | - | 4.95 | 135,279 |
| Andean Countries | 0 | - | 4.94 | 82,791 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,193 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,141 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,858 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,567 |
| Danube Countries | 0 | - | 4.97 | 71,062 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,730 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,517 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,424 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,350 |
| European Landlocked Countries | 0 | - | 4.99 | 145,731 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,170 |
| Countries with the Most Species | 0 | - | 4.99 | 95,234 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,310 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,193 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,359 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,948 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,561 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,936 |
| Countries in the Alps | 0 | - | 4.86 | 116,787 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,536 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,220 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,991 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,403 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,131 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,977 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,550 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,736 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,181 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,034 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,189 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,030 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,431 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,722 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,735 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,018 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,620 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,246 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,749 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,177 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,596 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,589 |
| Largest Countries By Category | 0 | - | 4.97 | 156,720 |
| Countries by Countries | 0 | - | 4.96 | 62,242 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,737 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,351 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,957 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,323 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,085 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,224 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,739 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,221 |
| Northernmost Countries | 0 | - | 4.99 | 357,621 |
| Countries of South America | 0 | - | 5.00 | 914,373 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,056 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,618 |
| "Land" Countries | 0 | - | 4.98 | 333,591 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 129,625 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,223,779 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,716 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,535 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,070 |
| Countries with Megacities | 0 | - | 4.99 | 246,675 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,001 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,854 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,425 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,785 |
| Countries by Official Language | 0 | - | 4.95 | 192,730 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,064 |
| Countries in their Native Language | 0 | - | 4.99 | 196,594 |
| Independence from Whom | 0 | - | 4.99 | 209,634 |
| Subdivisions by Country | 0 | - | 4.86 | 50,059 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,710 |
| Megadiverse Countries | 0 | - | 4.97 | 133,882 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,755 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,910 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,416 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,853 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,627 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,986 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,883 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,130 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,208 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,737 |
| Countries with Four Letters - Shape Quiz | 0 | - | 4.97 | 100,807 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,528 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,404 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,479 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,490 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,653 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,012 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,530 |
| World Map Quiz | 0 | - | 4.81 | 63,472 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,555 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,309 |
| Countries by Founding Story | 0 | - | 4.95 | 76,510 |
| Countries by Road Signs | 0 | - | 4.98 | 53,083 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,305 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,966 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,924 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,686 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,833 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,039 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,253 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,931 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,323 |
| Widest Countries East to West | 0 | - | 4.92 | 128,592 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,182 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,560 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,676 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,610 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,023 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,048 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,571 |
| Countries with Double Letters | 0 | - | 4.97 | 93,347 |
| Countries that End in N | 0 | - | 4.94 | 156,544 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,638 |
| Countries with Six Letters | 0 | - | 4.93 | 210,310 |
| Countries with W | 0 | - | 4.97 | 158,199 |
| Countries with Z | 0 | - | 4.98 | 287,825 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,518 |
| Countries That End in U | 0 | - | 4.95 | 119,499 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,501 |
| Countries that End in O | 0 | - | 4.92 | 158,534 |
| Countries that End in R | 0 | - | 4.87 | 118,257 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,851 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,978 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,298 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,469 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,984 |
| Countries That End in Y | 0 | - | 4.90 | 185,190 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,337 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,646 |
| Countries that End in I | 0 | - | 4.94 | 134,397 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,148 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,181 |
| Countries That End in NIA | 0 | - | 4.92 | 108,987 |
| Countries That End in BIA | 0 | - | 4.92 | 147,689 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,040 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,469 |
| Countries That End in RIA | 0 | - | 4.93 | 126,063 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,983 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,146 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,501 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,876 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,336 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,917 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,096 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,626 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,479 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,805 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,109 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,784 |
| Countries that End in L | 0 | - | 4.94 | 155,705 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,073 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,981 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,499 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,278 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,412 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,801 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,054 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 125,898 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,159 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,346 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,503 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,607 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,165 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,414 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,305 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,293 |
| One Border Countries | 0 | - | 4.98 | 464,256 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,086 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,855 |
| Strongest Nation Brands | 0 | - | 4.50 | 37,331 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,535,693 |
| Random Country Shape to Country | 0 | - | 4.90 | 111,016 |
| Beers by Country | 0 | - | 4.45 | 96,123 |
| Countries that Beat China | 0 | - | 4.86 | 114,686 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,849 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,801 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,867 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,849 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,458 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,564 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,228 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,418 |
| Countries by National Anthem | 0 | - | 4.92 | 71,013 |
