| Spanish-Speaking Countries | 0 | - | 4.95 | 376,888 |
| Countries by Official Language | 0 | - | 4.95 | 196,132 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,801 |
| Countries in their Native Language | 0 | - | 4.99 | 199,851 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,047 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,728 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,408 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,380 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,301 |
| French-Speaking Countries | 0 | - | 4.85 | 271,783 |
| German-Speaking Countries | 0 | - | 4.92 | 146,060 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 113,625 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,461 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,954 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,927,294 |
| Landlocked Countries | 0 | - | 4.99 | 426,680 |
| English Speaking Countries | 0 | - | 4.64 | 358,359 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,808,520 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,630 |
| Himalayan Countries | 0 | - | 4.93 | 140,553 |
| Andean Countries | 0 | - | 4.94 | 85,656 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,793 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,273 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,348 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,579 |
| Danube Countries | 0 | - | 4.97 | 72,487 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,708 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,912 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,307 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,757 |
| European Landlocked Countries | 0 | - | 4.99 | 147,683 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,423 |
| Countries with the Most Species | 0 | - | 4.99 | 103,610 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,539 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,794 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,922 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,887 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,628 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,083 |
| Countries in the Alps | 0 | - | 4.87 | 118,875 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,829 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,020 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,019 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,106 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,053 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,333 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,482 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,931 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,477 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,254 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,926 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,796 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,623 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,860 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,960 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,027 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,669 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,796 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,766 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,997 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,335 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,568 |
| Largest Countries By Category | 0 | - | 4.97 | 158,973 |
| Countries by Countries | 0 | - | 4.97 | 63,726 |
| Five Least Guessed Countries by Continent | 0 | - | 4.97 | 99,562 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,348 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,427 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,690 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,167 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,256 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 60,105 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,955 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,971 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,067 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,045 |
| Island Countries | 0 | - | 4.99 | 712,790 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,495 |
| Northernmost Countries | 0 | - | 4.99 | 364,330 |
| Countries of South America | 0 | - | 5.00 | 933,527 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,527 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,228 |
| "Land" Countries | 0 | - | 4.98 | 338,633 |
| Top World Languages | 0 | - | 4.92 | 830,599 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,736 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,442 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,486 |
| Five Most Guessed Countries by Continent | 0 | - | 4.97 | 174,562 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,242 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,353 |
| Countries with Megacities | 0 | - | 4.99 | 267,517 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,007 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,247 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,339 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,348 |
| Independence from Whom | 0 | - | 4.99 | 213,252 |
| Subdivisions by Country | 0 | - | 4.87 | 50,643 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,572 |
| Megadiverse Countries | 0 | - | 4.96 | 146,198 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,558 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,759 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,241 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,368 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,894 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,197 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,598 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,129 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,663 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,443 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,471 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,183 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,610 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,924 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,556 |
| World Map Quiz | 0 | - | 4.81 | 65,849 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,586 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,766 |
| Countries by Founding Story | 0 | - | 4.95 | 77,867 |
| Countries by Road Signs | 0 | - | 4.98 | 54,397 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,398 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,165 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,631 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,754 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,494 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,614 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,800 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,737 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,865 |
| Widest Countries East to West | 0 | - | 4.92 | 130,783 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,619 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,319 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,539 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,110 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,053 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,551 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,519 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,909 |
| Countries with Double Letters | 0 | - | 4.96 | 97,306 |
| Countries that End in N | 0 | - | 4.95 | 172,388 |
| Countries with Five Letters | 0 | - | 4.96 | 284,293 |
| Countries with Six Letters | 0 | - | 4.94 | 214,695 |
| Countries with W | 0 | - | 4.96 | 161,110 |
| Countries with Z | 0 | - | 4.98 | 292,688 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,453 |
| Countries That End in U | 0 | - | 4.95 | 121,279 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,247 |
| Countries that End in O | 0 | - | 4.92 | 160,285 |
| Countries that End in R | 0 | - | 4.87 | 119,229 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,994 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,997 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 176,573 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,951 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,094 |
| Countries That End in Y | 0 | - | 4.91 | 186,125 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,744 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,343 |
| Countries that End in I | 0 | - | 4.94 | 135,370 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,849 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,100 |
| Countries That End in NIA | 0 | - | 4.92 | 110,109 |
| Countries That End in BIA | 0 | - | 4.93 | 149,661 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,843 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,828 |
| Countries That End in RIA | 0 | - | 4.93 | 127,102 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,464 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,776 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,278 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,741 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,293 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,856 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,382 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,565 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,980 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,682 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,819 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,511 |
| Countries that End in L | 0 | - | 4.94 | 157,190 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,290 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,365 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,647 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,073 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,502 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,548 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,231 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,479 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,349 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,091 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,276 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,272 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,961 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,856 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,308 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,496 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,133 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,746 |
| One Border Countries | 0 | - | 4.98 | 472,284 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 116,043 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,851,033 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,656,638 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,270 |
