| Countries of the World Quiz | 0 | - | 5.00 | 47,364,615 |
| Countries by Emojis | 0 | - | 4.99 | 239,095 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,564 |
| Landlocked Countries | 0 | - | 4.99 | 419,369 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,759,429 |
| Countries as U.S. First Names | 0 | - | 4.31 | 77,783 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,370 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,708 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,341 |
| Island Countries | 0 | - | 4.99 | 709,938 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,167 |
| Himalayan Countries | 0 | - | 4.95 | 137,599 |
| Andean Countries | 0 | - | 4.95 | 84,032 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,289 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,773 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,899 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,402 |
| Danube Countries | 0 | - | 4.97 | 71,706 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,617 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,106 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,724 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,802 |
| European Landlocked Countries | 0 | - | 4.99 | 146,815 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,190 |
| Countries with the Most Species | 0 | - | 4.99 | 102,964 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,337 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,440 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,603 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,337 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,016 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,403 |
| Countries in the Alps | 0 | - | 4.87 | 117,756 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,185 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,457 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,448 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,044 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,152 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,747 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,331 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,231 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,993 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,592 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,508 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,358 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,964 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,224 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,250 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,269 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,089 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,591 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,600 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,561 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,335 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,018 |
| Largest Countries By Category | 0 | - | 4.97 | 157,715 |
| Countries by Countries | 0 | - | 4.96 | 62,879 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,666 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,272 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,173 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,479 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,690 |
| 20 Random Country Flags | 0 | - | 4.99 | 611,040 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,371 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,510 |
| Northernmost Countries | 0 | - | 4.99 | 360,668 |
| Countries of South America | 0 | - | 5.00 | 923,516 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,877 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,867,734 |
| "Land" Countries | 0 | - | 4.98 | 335,901 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 130,541 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,305,924 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,904 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,881 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,142 |
| Countries with Megacities | 0 | - | 4.99 | 261,570 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,007 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,063 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,291 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,093 |
| Countries by Official Language | 0 | - | 4.95 | 194,715 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,642 |
| Countries in their Native Language | 0 | - | 4.99 | 198,262 |
| Independence from Whom | 0 | - | 4.99 | 211,423 |
| Subdivisions by Country | 0 | - | 4.86 | 50,301 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,788 |
| Megadiverse Countries | 0 | - | 4.96 | 134,796 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,600 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,205 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,769 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,030 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,755 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,407 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,038 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,866 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,509 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,001 |
| Countries with Four Letters - Shape Quiz | 0 | - | 4.97 | 101,343 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,086 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,741 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,014 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,803 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,176 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,346 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,308 |
| World Map Quiz | 0 | - | 4.81 | 64,660 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,797 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,070 |
| Countries by Founding Story | 0 | - | 4.95 | 77,104 |
| Countries by Road Signs | 0 | - | 4.98 | 53,696 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,600 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,979 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,700 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,447 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,573 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,719 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,866 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,297 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,327 |
| Widest Countries East to West | 0 | - | 4.92 | 129,414 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,392 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,004 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,011 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,550 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,272 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,591 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,254 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,732 |
| Countries with Double Letters | 0 | - | 4.97 | 95,156 |
| Countries that End in N | 0 | - | 4.95 | 170,125 |
| Countries with Five Letters | 0 | - | 4.96 | 280,664 |
| Countries with Six Letters | 0 | - | 4.94 | 212,577 |
| Countries with W | 0 | - | 4.97 | 159,562 |
| Countries with Z | 0 | - | 4.98 | 289,905 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,808 |
| Countries That End in U | 0 | - | 4.95 | 120,432 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,818 |
| Countries that End in O | 0 | - | 4.92 | 159,218 |
| Countries that End in R | 0 | - | 4.87 | 118,750 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,530 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,401 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,154 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,114 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,705 |
| Countries That End in Y | 0 | - | 4.91 | 185,659 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,299 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,472 |
| Countries that End in I | 0 | - | 4.94 | 134,893 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,152 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,597 |
| Countries That End in NIA | 0 | - | 4.92 | 109,539 |
| Countries That End in BIA | 0 | - | 4.93 | 148,876 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,769 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,096 |
| Countries That End in RIA | 0 | - | 4.93 | 126,563 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,671 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,814 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,280 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,657 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,193 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,355 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,711 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,279 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,172 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,216 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,882 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,584 |
| Countries that End in L | 0 | - | 4.94 | 156,566 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,207 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,161 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,861 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,745 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,801 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,868 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,233 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,677 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,176 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,679 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,612 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,969 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,609 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,697 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,824,151 |
| One Border Countries | 0 | - | 4.98 | 467,909 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,660 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,617,108 |
| Strongest Nation Brands | 0 | - | 4.50 | 37,555 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,372 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,546,874 |
| Random Country Shape to Country | 0 | - | 4.90 | 112,936 |
| Beers by Country | 0 | - | 4.45 | 97,207 |
| Countries that Beat China | 0 | - | 4.86 | 115,569 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,164 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,590 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,514 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,739 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,311 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,424 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,971 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,529 |
| Countries by National Anthem | 0 | - | 4.93 | 71,196 |
