| Spanish-Speaking Countries | 0 | - | 4.95 | 372,375 |
| Countries by Official Language | 0 | - | 4.95 | 192,918 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,334 |
| Countries in their Native Language | 0 | - | 4.99 | 196,773 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,938 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,690 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,974,946 |
| French-Speaking Countries | 0 | - | 4.85 | 269,005 |
| German-Speaking Countries | 0 | - | 4.89 | 123,547 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,158 |
| Landlocked Countries | 0 | - | 4.99 | 414,303 |
| English Speaking Countries | 0 | - | 4.64 | 356,159 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,722,452 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,302 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 712,423 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,867 |
| Himalayan Countries | 0 | - | 4.95 | 135,601 |
| Andean Countries | 0 | - | 4.94 | 82,952 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,321 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,360 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,021 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,692 |
| Danube Countries | 0 | - | 4.97 | 71,142 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,845 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,607 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,623 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,537 |
| European Landlocked Countries | 0 | - | 4.99 | 145,839 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,307 |
| Countries with the Most Species | 0 | - | 4.99 | 95,284 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,456 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,223 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,392 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,995 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,634 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,006 |
| Countries in the Alps | 0 | - | 4.86 | 116,935 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,641 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,387 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,071 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,480 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,254 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,064 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,664 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,820 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,536 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,121 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,218 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,084 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,507 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,804 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,797 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,205 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,713 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,291 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,867 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,652 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,899 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,649 |
| Largest Countries By Category | 0 | - | 4.97 | 156,873 |
| Countries by Countries | 0 | - | 4.96 | 62,327 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,514 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,986 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,350 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,835 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,830 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,189 |
| Island Countries | 0 | - | 4.99 | 707,880 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,387 |
| Northernmost Countries | 0 | - | 4.99 | 358,088 |
| Countries of South America | 0 | - | 5.00 | 915,964 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,009 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,716 |
| "Land" Countries | 0 | - | 4.98 | 333,830 |
| Top World Languages | 0 | - | 4.92 | 814,000 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,238 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,314 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,610 |
| Countries with Megacities | 0 | - | 4.99 | 247,525 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,442 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,192 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,859 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,119 |
| Independence from Whom | 0 | - | 4.99 | 209,868 |
| Subdivisions by Country | 0 | - | 4.86 | 50,102 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,885 |
| Megadiverse Countries | 0 | - | 4.97 | 133,960 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,951 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,464 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,875 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,747 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,047 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,170 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,212 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,244 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,759 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,725 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,453 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,545 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,534 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,728 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,055 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,778 |
| World Map Quiz | 0 | - | 4.81 | 63,633 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,081 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,402 |
| Countries by Founding Story | 0 | - | 4.95 | 76,609 |
| Countries by Road Signs | 0 | - | 4.98 | 53,178 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,513 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,299 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,043 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,960 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,953 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,138 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,358 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,989 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,396 |
| Widest Countries East to West | 0 | - | 4.92 | 128,759 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,237 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,314 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,600 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,744 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,695 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,119 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 71,103 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,608 |
| Countries with Double Letters | 0 | - | 4.96 | 93,517 |
| Countries that End in N | 0 | - | 4.94 | 157,000 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,820 |
| Countries with Six Letters | 0 | - | 4.93 | 210,498 |
| Countries with W | 0 | - | 4.97 | 158,316 |
| Countries with Z | 0 | - | 4.98 | 288,032 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,634 |
| Countries That End in U | 0 | - | 4.95 | 119,559 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,707 |
| Countries that End in O | 0 | - | 4.92 | 158,596 |
| Countries that End in R | 0 | - | 4.87 | 118,311 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,882 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,223 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,421 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,556 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,102 |
| Countries That End in Y | 0 | - | 4.90 | 185,239 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,481 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,780 |
| Countries that End in I | 0 | - | 4.94 | 134,478 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,306 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,241 |
| Countries That End in NIA | 0 | - | 4.92 | 109,058 |
| Countries That End in BIA | 0 | - | 4.92 | 147,768 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,148 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,556 |
| Countries That End in RIA | 0 | - | 4.93 | 126,131 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,084 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,386 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,578 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,952 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,440 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,963 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,189 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,713 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,575 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,846 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,222 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,887 |
| Countries that End in L | 0 | - | 4.94 | 155,914 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,612 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,002 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,560 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,352 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,467 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,578 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,399 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 138,869 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,467 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,794 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,783 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,746 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,194 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,436 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,361 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,618 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,038 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,222 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,931 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,803,941 |
| One Border Countries | 0 | - | 4.98 | 464,892 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,591,431 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,499 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,016 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,264 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,016 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,559 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,804 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,396 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,737 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,874 |
| Countries by National Anthem | 0 | - | 4.93 | 71,048 |
| NATO Countries | 0 | - | 4.98 | 276,299 |
| EU Countries Quiz | 0 | - | 4.99 | 270,320 |
