| Spanish-Speaking Countries | 0 | - | 4.95 | 372,707 |
| Countries by Official Language | 0 | - | 4.95 | 193,125 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,633 |
| Countries in their Native Language | 0 | - | 4.99 | 196,968 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,127 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,762 |
| Landlocked Countries | 0 | - | 4.99 | 415,163 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,041,105 |
| French-Speaking Countries | 0 | - | 4.85 | 269,245 |
| German-Speaking Countries | 0 | - | 4.89 | 123,596 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,285 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,215 |
| Himalayan Countries | 0 | - | 4.95 | 135,909 |
| Andean Countries | 0 | - | 4.94 | 83,136 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,460 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,579 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,159 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,814 |
| Danube Countries | 0 | - | 4.97 | 71,246 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,972 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,690 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,827 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,749 |
| European Landlocked Countries | 0 | - | 4.99 | 145,946 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,488 |
| Countries with the Most Species | 0 | - | 4.99 | 95,329 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,615 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,263 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,436 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,054 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,707 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,062 |
| Countries in the Alps | 0 | - | 4.86 | 117,096 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,736 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,557 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,146 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,566 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,361 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,130 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,770 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,885 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,671 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,197 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,265 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,133 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,601 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,866 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,878 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,421 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,786 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,345 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,000 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,164 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,138 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,713 |
| Largest Countries By Category | 0 | - | 4.97 | 156,996 |
| Countries by Countries | 0 | - | 4.96 | 62,422 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,633 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,017 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,375 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,919 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,209 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,369 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,655 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,668 |
| Island Countries | 0 | - | 4.99 | 708,251 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,469 |
| Northernmost Countries | 0 | - | 4.99 | 358,597 |
| Countries of South America | 0 | - | 5.00 | 917,503 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,726 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,667 |
| "Land" Countries | 0 | - | 4.98 | 334,056 |
| Top World Languages | 0 | - | 4.92 | 815,180 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,387 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,473 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,853 |
| Countries with Megacities | 0 | - | 4.99 | 248,070 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,727 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,318 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,114 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,267 |
| Independence from Whom | 0 | - | 4.99 | 210,097 |
| Subdivisions by Country | 0 | - | 4.86 | 50,136 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,030 |
| Megadiverse Countries | 0 | - | 4.97 | 134,296 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,003 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,528 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,900 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,857 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,110 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,303 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,408 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,288 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,781 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,879 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,503 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,606 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,576 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,783 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,114 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,062 |
| World Map Quiz | 0 | - | 4.81 | 63,758 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,540 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,560 |
| Countries by Founding Story | 0 | - | 4.95 | 76,698 |
| Countries by Road Signs | 0 | - | 4.98 | 53,261 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,747 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,491 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,218 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,254 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,091 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,294 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,480 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,065 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,511 |
| Widest Countries East to West | 0 | - | 4.92 | 129,010 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,281 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,460 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,641 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,852 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,806 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,210 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,472 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,639 |
| Countries with Double Letters | 0 | - | 4.96 | 93,659 |
| Countries that End in N | 0 | - | 4.94 | 157,122 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,000 |
| Countries with Six Letters | 0 | - | 4.93 | 210,660 |
| Countries with W | 0 | - | 4.97 | 158,409 |
| Countries with Z | 0 | - | 4.98 | 288,212 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,746 |
| Countries That End in U | 0 | - | 4.95 | 119,602 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,853 |
| Countries that End in O | 0 | - | 4.92 | 158,641 |
| Countries that End in R | 0 | - | 4.87 | 118,366 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,928 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,391 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,532 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,638 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,190 |
| Countries That End in Y | 0 | - | 4.90 | 185,281 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,602 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,882 |
| Countries that End in I | 0 | - | 4.94 | 134,532 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,450 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,292 |
| Countries That End in NIA | 0 | - | 4.92 | 109,110 |
| Countries That End in BIA | 0 | - | 4.92 | 147,845 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,240 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,628 |
| Countries That End in RIA | 0 | - | 4.93 | 126,190 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,171 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,675 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,669 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,021 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,570 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,019 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,276 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,786 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,673 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,888 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,332 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,977 |
| Countries that End in L | 0 | - | 4.94 | 156,147 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,063 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,019 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,618 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,442 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,519 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,934 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,611 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,618 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,635 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,003 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,910 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,809 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,242 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,461 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,412 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,798 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,141 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,638 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,294 |
| One Border Countries | 0 | - | 4.98 | 465,539 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,567 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,807,251 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,595,840 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,134 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,496 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,135 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,614 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,930 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,497 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,007 |
| Countries by National Anthem | 0 | - | 4.93 | 71,071 |
| NATO Countries | 0 | - | 4.98 | 277,133 |
| EU Countries Quiz | 0 | - | 4.99 | 270,836 |
| Recently Independent Countries | 0 | - | 4.98 | 158,182 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,443 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,503 |
