| Landlocked Countries | 0 | - | 4.99 | 415,385 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,528 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,059,710 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,309 |
| Himalayan Countries | 0 | - | 4.95 | 135,984 |
| Andean Countries | 0 | - | 4.94 | 83,172 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,496 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,634 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,186 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,833 |
| Danube Countries | 0 | - | 4.97 | 71,269 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,002 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,714 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,872 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,819 |
| European Landlocked Countries | 0 | - | 4.99 | 145,967 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,524 |
| Countries with the Most Species | 0 | - | 4.99 | 95,348 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,653 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,270 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,441 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,068 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,718 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,076 |
| Countries in the Alps | 0 | - | 4.86 | 117,126 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,762 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,598 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,162 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,592 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,380 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,141 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,803 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,900 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,695 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,208 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,274 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,139 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,621 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,880 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,891 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,464 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,800 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,350 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,036 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,285 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,201 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,733 |
| Largest Countries By Category | 0 | - | 4.97 | 157,032 |
| Countries by Countries | 0 | - | 4.96 | 62,445 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,676 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,027 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,377 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,948 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,731,109 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,850 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,807 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,807 |
| Island Countries | 0 | - | 4.99 | 708,334 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,743 |
| Northernmost Countries | 0 | - | 4.99 | 358,707 |
| Countries of South America | 0 | - | 5.00 | 917,853 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,255 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,430 |
| "Land" Countries | 0 | - | 4.98 | 334,104 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,144 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,911 |
| Countries with Megacities | 0 | - | 4.99 | 248,206 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,806 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,359 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,188 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,300 |
| Countries by Official Language | 0 | - | 4.95 | 193,190 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,731 |
| Countries in their Native Language | 0 | - | 4.99 | 197,029 |
| Independence from Whom | 0 | - | 4.99 | 210,168 |
| Subdivisions by Country | 0 | - | 4.86 | 50,150 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,067 |
| Megadiverse Countries | 0 | - | 4.96 | 134,452 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,190 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,014 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,547 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,907 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,883 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,129 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,332 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,450 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,303 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,787 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,930 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,521 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,624 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,584 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,797 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,124 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,145 |
| World Map Quiz | 0 | - | 4.81 | 63,800 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,659 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,586 |
| Countries by Founding Story | 0 | - | 4.95 | 76,724 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,788 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,522 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,247 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,351 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,115 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,316 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,507 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,080 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,532 |
| Widest Countries East to West | 0 | - | 4.92 | 129,028 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,286 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,490 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,657 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,867 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,834 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,234 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,699 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,643 |
| Countries with Double Letters | 0 | - | 4.96 | 93,699 |
| Countries that End in N | 0 | - | 4.94 | 157,155 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,049 |
| Countries with Six Letters | 0 | - | 4.93 | 210,725 |
| Countries with W | 0 | - | 4.97 | 158,429 |
| Countries with Z | 0 | - | 4.98 | 288,263 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,773 |
| Countries That End in U | 0 | - | 4.95 | 119,620 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,889 |
| Countries that End in O | 0 | - | 4.92 | 158,663 |
| Countries that End in R | 0 | - | 4.87 | 118,379 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,938 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,430 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,570 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,659 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,207 |
| Countries That End in Y | 0 | - | 4.90 | 185,292 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,631 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,907 |
| Countries that End in I | 0 | - | 4.94 | 134,546 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,485 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,305 |
| Countries That End in NIA | 0 | - | 4.92 | 109,126 |
| Countries That End in BIA | 0 | - | 4.92 | 147,858 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,271 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,637 |
| Countries That End in RIA | 0 | - | 4.93 | 126,203 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,189 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,749 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,695 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,043 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,594 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,031 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,288 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,806 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,695 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,902 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,354 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,002 |
| Countries that End in L | 0 | - | 4.94 | 156,163 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,188 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,023 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,628 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,464 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,534 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,003 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,643 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,775 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,665 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,045 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,931 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,822 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,245 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,469 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,426 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,976 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,393 |
| One Border Countries | 0 | - | 4.98 | 465,725 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,808,297 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,597,173 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,159 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,586 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,159 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,636 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,958 |
| Countries by National Anthem | 0 | - | 4.93 | 71,076 |
| NATO Countries | 0 | - | 4.98 | 277,279 |
| EU Countries Quiz | 0 | - | 4.99 | 270,942 |
| Recently Independent Countries | 0 | - | 4.98 | 158,211 |
| French-Speaking Countries | 0 | - | 4.85 | 269,297 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,452 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,562 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,775 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,514 |
| German-Speaking Countries | 0 | - | 4.89 | 123,623 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,897 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,541 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,855 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,622 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 116,733 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 111,943 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,172 |
| Olympic Host Countries | 0 | - | 4.98 | 199,245 |
