| Spanish-Speaking Countries | 0 | - | 4.95 | 372,877 |
| Countries by Official Language | 0 | - | 4.95 | 193,225 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,781 |
| Countries in their Native Language | 0 | - | 4.99 | 197,053 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,225 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,808 |
| French-Speaking Countries | 0 | - | 4.85 | 269,338 |
| German-Speaking Countries | 0 | - | 4.89 | 123,634 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,348 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,072,337 |
| Landlocked Countries | 0 | - | 4.99 | 415,543 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,591 |
| English Speaking Countries | 0 | - | 4.64 | 356,402 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,732,295 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,377 |
| Himalayan Countries | 0 | - | 4.95 | 136,037 |
| Andean Countries | 0 | - | 4.94 | 83,197 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,516 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,679 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,208 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,858 |
| Danube Countries | 0 | - | 4.97 | 71,280 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,022 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,725 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,904 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,845 |
| European Landlocked Countries | 0 | - | 4.99 | 145,984 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,559 |
| Countries with the Most Species | 0 | - | 4.99 | 95,355 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,685 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,275 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,446 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,076 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,725 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,094 |
| Countries in the Alps | 0 | - | 4.86 | 117,149 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,771 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,628 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,169 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,603 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,404 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,154 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,822 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,908 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,709 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,223 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,281 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,149 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,630 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,896 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,910 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,499 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,807 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,356 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,057 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,363 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,248 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,741 |
| Largest Countries By Category | 0 | - | 4.97 | 157,065 |
| Countries by Countries | 0 | - | 4.96 | 62,463 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,699 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,033 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,384 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,965 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,400 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,971 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,885 |
| Island Countries | 0 | - | 4.99 | 708,397 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,959 |
| Northernmost Countries | 0 | - | 4.99 | 358,795 |
| Countries of South America | 0 | - | 5.00 | 918,105 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,576 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,954 |
| "Land" Countries | 0 | - | 4.98 | 334,137 |
| Top World Languages | 0 | - | 4.92 | 815,707 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,420 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,621 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,954 |
| Countries with Megacities | 0 | - | 4.99 | 248,316 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,854 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,382 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,242 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,313 |
| Independence from Whom | 0 | - | 4.99 | 210,198 |
| Subdivisions by Country | 0 | - | 4.86 | 50,154 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,096 |
| Megadiverse Countries | 0 | - | 4.96 | 134,474 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,027 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,552 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,914 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,902 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,139 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,368 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,464 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,309 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,789 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,968 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,529 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,634 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,595 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,805 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,129 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,189 |
| World Map Quiz | 0 | - | 4.81 | 63,834 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,788 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,609 |
| Countries by Founding Story | 0 | - | 4.95 | 76,741 |
| Countries by Road Signs | 0 | - | 4.98 | 53,288 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,817 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,545 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,267 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,393 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,136 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,333 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,526 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,091 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,545 |
| Widest Countries East to West | 0 | - | 4.92 | 129,044 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,291 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,515 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,661 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,878 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,857 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,247 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,796 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,647 |
| Countries with Double Letters | 0 | - | 4.96 | 93,730 |
| Countries that End in N | 0 | - | 4.94 | 157,169 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,080 |
| Countries with Six Letters | 0 | - | 4.93 | 210,745 |
| Countries with W | 0 | - | 4.97 | 158,443 |
| Countries with Z | 0 | - | 4.98 | 288,292 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,793 |
| Countries That End in U | 0 | - | 4.95 | 119,625 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,913 |
| Countries that End in O | 0 | - | 4.92 | 158,670 |
| Countries that End in R | 0 | - | 4.87 | 118,385 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,941 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,453 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,586 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,676 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,230 |
| Countries That End in Y | 0 | - | 4.90 | 185,301 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,650 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,934 |
| Countries that End in I | 0 | - | 4.94 | 134,561 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,519 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,320 |
| Countries That End in NIA | 0 | - | 4.92 | 109,143 |
| Countries That End in BIA | 0 | - | 4.92 | 147,873 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,287 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,655 |
| Countries That End in RIA | 0 | - | 4.93 | 126,212 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,200 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,787 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,707 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,057 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,617 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,045 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,302 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,823 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,714 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,911 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,374 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,024 |
| Countries that End in L | 0 | - | 4.94 | 156,174 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,265 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,024 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,642 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,478 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,541 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,044 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,667 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,870 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,690 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,084 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,956 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,832 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,247 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,471 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,439 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,873 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,185 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,236 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,449 |
| One Border Countries | 0 | - | 4.98 | 465,836 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,808,935 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,598,059 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,174 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,625 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,178 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,652 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,976 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,545 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,158 |
| Countries by National Anthem | 0 | - | 4.93 | 71,081 |
| NATO Countries | 0 | - | 4.98 | 277,390 |
| EU Countries Quiz | 0 | - | 4.99 | 271,022 |
| Recently Independent Countries | 0 | - | 4.98 | 158,235 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,460 |
