| Landlocked Countries | 0 | - | 4.99 | 414,698 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,006,746 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,041 |
| Himalayan Countries | 0 | - | 4.95 | 135,733 |
| Andean Countries | 0 | - | 4.94 | 83,042 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,388 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,467 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,087 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,750 |
| Danube Countries | 0 | - | 4.97 | 71,190 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,914 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,647 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,728 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,629 |
| European Landlocked Countries | 0 | - | 4.99 | 145,885 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,386 |
| Countries with the Most Species | 0 | - | 4.99 | 95,307 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,548 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,241 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,409 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,021 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,663 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,031 |
| Countries in the Alps | 0 | - | 4.86 | 117,003 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,688 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,469 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,115 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,517 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,306 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,096 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,708 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,847 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,615 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,160 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,236 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,106 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,555 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,837 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,837 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,316 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,743 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,316 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,957 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,894 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,036 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,686 |
| Largest Countries By Category | 0 | - | 4.97 | 156,926 |
| Countries by Countries | 0 | - | 4.96 | 62,379 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,560 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,002 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,361 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,079 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,219 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,869 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,579 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,276 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,513 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,395 |
| Island Countries | 0 | - | 4.99 | 708,044 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,920 |
| Northernmost Countries | 0 | - | 4.99 | 358,333 |
| Countries of South America | 0 | - | 5.00 | 916,716 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,784 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,093 |
| "Land" Countries | 0 | - | 4.98 | 333,931 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,274 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,724 |
| Countries with Megacities | 0 | - | 4.99 | 247,803 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,593 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,246 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,973 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,194 |
| Countries by Official Language | 0 | - | 4.95 | 192,999 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,452 |
| Countries in their Native Language | 0 | - | 4.99 | 196,856 |
| Independence from Whom | 0 | - | 4.99 | 209,975 |
| Subdivisions by Country | 0 | - | 4.86 | 50,116 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,944 |
| Megadiverse Countries | 0 | - | 4.97 | 133,992 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,022 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,971 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,484 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,889 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,795 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,076 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,231 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,269 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,268 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,771 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,773 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,472 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,571 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,559 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,753 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,084 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,917 |
| World Map Quiz | 0 | - | 4.81 | 63,691 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,280 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,459 |
| Countries by Founding Story | 0 | - | 4.95 | 76,643 |
| Countries by Road Signs | 0 | - | 4.98 | 53,219 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,632 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,410 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,140 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,123 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,038 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,228 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,426 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,028 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,470 |
| Widest Countries East to West | 0 | - | 4.92 | 128,962 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,261 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,375 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,618 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,793 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,736 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,166 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 74,728 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,628 |
| Countries with Double Letters | 0 | - | 4.97 | 93,593 |
| Countries that End in N | 0 | - | 4.94 | 157,071 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,911 |
| Countries with Six Letters | 0 | - | 4.93 | 210,584 |
| Countries with W | 0 | - | 4.97 | 158,362 |
| Countries with Z | 0 | - | 4.98 | 288,113 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,692 |
| Countries That End in U | 0 | - | 4.95 | 119,588 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,789 |
| Countries that End in O | 0 | - | 4.92 | 158,618 |
| Countries that End in R | 0 | - | 4.87 | 118,340 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,909 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,313 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,479 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,599 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,143 |
| Countries That End in Y | 0 | - | 4.90 | 185,261 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,539 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,831 |
| Countries that End in I | 0 | - | 4.94 | 134,507 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,375 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,266 |
| Countries That End in NIA | 0 | - | 4.92 | 109,081 |
| Countries That End in BIA | 0 | - | 4.92 | 147,807 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,190 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,590 |
| Countries That End in RIA | 0 | - | 4.93 | 126,159 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,125 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,568 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,623 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,983 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,485 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,988 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,222 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,746 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,629 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,861 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,260 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,930 |
| Countries that End in L | 0 | - | 4.94 | 156,118 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,809 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,012 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,591 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,394 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,489 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,769 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,517 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 140,934 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,575 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,927 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,856 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,782 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,226 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,449 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,387 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,920 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,094 |
| One Border Countries | 0 | - | 4.98 | 465,165 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,714 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,805,314 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,593,596 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,086 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,348 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,075 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,583 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,865 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,449 |
| Countries by National Anthem | 0 | - | 4.92 | 71,058 |
| NATO Countries | 0 | - | 4.98 | 276,809 |
| EU Countries Quiz | 0 | - | 4.99 | 270,567 |
| Recently Independent Countries | 0 | - | 4.98 | 158,117 |
| French-Speaking Countries | 0 | - | 4.85 | 269,110 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,423 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,348 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,450 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,043 |
| German-Speaking Countries | 0 | - | 4.89 | 123,569 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,765 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,422 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,601 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,383 |
