| Spanish-Speaking Countries | 0 | - | 4.95 | 376,754 |
| Countries by Official Language | 0 | - | 4.95 | 196,044 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,689 |
| Countries in their Native Language | 0 | - | 4.99 | 199,785 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,980 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,701 |
| French-Speaking Countries | 0 | - | 4.85 | 271,717 |
| German-Speaking Countries | 0 | - | 4.92 | 146,034 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,904 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,897,748 |
| Landlocked Countries | 0 | - | 4.99 | 426,134 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,178 |
| English Speaking Countries | 0 | - | 4.64 | 358,293 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,973 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,395 |
| Himalayan Countries | 0 | - | 4.93 | 140,349 |
| Andean Countries | 0 | - | 4.94 | 85,523 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,672 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,094 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,247 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,479 |
| Danube Countries | 0 | - | 4.97 | 72,436 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,633 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,866 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,182 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,656 |
| European Landlocked Countries | 0 | - | 4.99 | 147,631 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,344 |
| Countries with the Most Species | 0 | - | 4.99 | 103,584 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,440 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,784 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,895 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,858 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,593 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,039 |
| Countries in the Alps | 0 | - | 4.87 | 118,816 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,697 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,923 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,979 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,045 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,986 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,284 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,435 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,884 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,442 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,204 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,895 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,755 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,575 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,821 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,911 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,907 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,634 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,338 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,710 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,829 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,210 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,532 |
| Largest Countries By Category | 0 | - | 4.97 | 158,895 |
| Countries by Countries | 0 | - | 4.96 | 63,667 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,292 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,412 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,677 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,069 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,450 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,127 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,954 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,664 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,825 |
| Island Countries | 0 | - | 4.99 | 712,649 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,020 |
| Northernmost Countries | 0 | - | 4.99 | 364,130 |
| Countries of South America | 0 | - | 5.00 | 933,007 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,808 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,105 |
| "Land" Countries | 0 | - | 4.98 | 338,450 |
| Top World Languages | 0 | - | 4.92 | 830,118 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,134 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,434 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,232 |
| Countries with Megacities | 0 | - | 4.99 | 267,274 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,915 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,174 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,233 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,289 |
| Independence from Whom | 0 | - | 4.99 | 213,130 |
| Subdivisions by Country | 0 | - | 4.87 | 50,628 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,490 |
| Megadiverse Countries | 0 | - | 4.96 | 135,295 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,547 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,712 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,233 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,302 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,864 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,142 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,576 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,085 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,582 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,394 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,452 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,158 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,595 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,892 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,417 |
| World Map Quiz | 0 | - | 4.81 | 65,775 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,392 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,731 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,624 |
| Countries by Founding Story | 0 | - | 4.95 | 77,827 |
| Countries by Road Signs | 0 | - | 4.98 | 54,371 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,308 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,116 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,593 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,647 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,465 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,569 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,768 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,713 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,776 |
| Widest Countries East to West | 0 | - | 4.92 | 130,631 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,604 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,280 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,525 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,077 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,006 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,503 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,511 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,897 |
| Countries With the Tallest People | 0 | - | 4.93 | 95,204 |
| Countries with Double Letters | 0 | - | 4.96 | 97,135 |
| Countries that End in N | 0 | - | 4.95 | 172,015 |
| Countries with Five Letters | 0 | - | 4.96 | 283,994 |
| Countries with Six Letters | 0 | - | 4.94 | 214,548 |
| Countries with W | 0 | - | 4.96 | 161,000 |
| Countries with Z | 0 | - | 4.98 | 292,521 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,328 |
| Countries That End in U | 0 | - | 4.95 | 121,213 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,156 |
| Countries that End in O | 0 | - | 4.92 | 160,239 |
| Countries that End in R | 0 | - | 4.87 | 119,198 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,959 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,904 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,185 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,855 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,780 |
| Countries That End in Y | 0 | - | 4.91 | 186,101 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,496 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,303 |
| Countries that End in I | 0 | - | 4.94 | 135,337 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,662 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,073 |
| Countries That End in NIA | 0 | - | 4.92 | 110,083 |
| Countries That End in BIA | 0 | - | 4.93 | 149,602 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,571 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,791 |
| Countries That End in RIA | 0 | - | 4.93 | 127,075 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,411 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,654 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,226 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,664 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,213 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,825 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,348 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,545 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,935 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,663 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,759 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,459 |
| Countries that End in L | 0 | - | 4.94 | 157,152 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,125 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,354 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,551 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,024 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,473 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,485 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,169 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,449 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,298 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,004 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,234 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,251 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,841 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,263 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,405 |
| Smallest Countries with at Least Two Borders | 0 | - | 4.97 | 43,223 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,493 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,583 |
| One Border Countries | 0 | - | 4.98 | 472,070 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,849,660 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,654,442 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,244 |
| Countries with the Highest Minimum Elevation | 0 | - | 4.86 | 16,278 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,351 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,201 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,697 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,920 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,244 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,643 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,836 |
