| Spanish-Speaking Countries | 0 | - | 4.95 | 375,226 |
| Countries by Official Language | 0 | - | 4.95 | 195,043 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,108 |
| Countries in their Native Language | 0 | - | 4.99 | 198,554 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,909 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,414 |
| Landlocked Countries | 0 | - | 4.99 | 421,029 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,503,084 |
| French-Speaking Countries | 0 | - | 4.85 | 270,642 |
| German-Speaking Countries | 0 | - | 4.91 | 145,630 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,197 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,999 |
| Himalayan Countries | 0 | - | 4.95 | 138,304 |
| Andean Countries | 0 | - | 4.93 | 84,375 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,594 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,510 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,225 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,626 |
| Danube Countries | 0 | - | 4.97 | 71,900 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,875 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,295 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,093 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,563 |
| European Landlocked Countries | 0 | - | 4.99 | 147,029 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,460 |
| Countries with the Most Species | 0 | - | 4.99 | 103,150 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,613 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,534 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,675 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,468 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,150 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,555 |
| Countries in the Alps | 0 | - | 4.87 | 118,040 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,322 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,834 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,579 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,505 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,380 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,873 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,539 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,399 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,111 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,746 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,585 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,444 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,118 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,384 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,419 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,664 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,213 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,726 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,887 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,453 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,819 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,141 |
| Largest Countries By Category | 0 | - | 4.97 | 158,018 |
| Countries by Countries | 0 | - | 4.96 | 63,081 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,540 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,237 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,529 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,265 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,879 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,565 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,350 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,691 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,734 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,612 |
| Island Countries | 0 | - | 4.99 | 710,656 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,576 |
| Northernmost Countries | 0 | - | 4.99 | 361,510 |
| Countries of South America | 0 | - | 5.00 | 925,840 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,069 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,763 |
| "Land" Countries | 0 | - | 4.98 | 336,990 |
| Top World Languages | 0 | - | 4.92 | 822,918 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,114 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,628 |
| Countries with Megacities | 0 | - | 4.99 | 263,869 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,475 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,329 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,751 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,379 |
| Independence from Whom | 0 | - | 4.99 | 211,857 |
| Subdivisions by Country | 0 | - | 4.86 | 50,385 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,549 |
| Megadiverse Countries | 0 | - | 4.96 | 134,926 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,287 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,869 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,075 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,988 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,529 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,327 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,972 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,593 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,051 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,462 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,818 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,129 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,907 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,292 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,438 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,882 |
| World Map Quiz | 0 | - | 4.81 | 64,950 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,713 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,251 |
| Countries by Founding Story | 0 | - | 4.95 | 77,282 |
| Countries by Road Signs | 0 | - | 4.98 | 53,885 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,886 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,160 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,881 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,930 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,796 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,920 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,214 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,388 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,498 |
| Widest Countries East to West | 0 | - | 4.92 | 129,561 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,426 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,253 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,086 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,686 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,473 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,759 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,332 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,779 |
| Countries with Double Letters | 0 | - | 4.96 | 95,936 |
| Countries that End in N | 0 | - | 4.95 | 170,844 |
| Countries with Five Letters | 0 | - | 4.96 | 281,957 |
| Countries with Six Letters | 0 | - | 4.94 | 213,263 |
| Countries with W | 0 | - | 4.97 | 160,112 |
| Countries with Z | 0 | - | 4.98 | 291,131 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,474 |
| Countries That End in U | 0 | - | 4.95 | 120,730 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,242 |
| Countries that End in O | 0 | - | 4.92 | 159,430 |
| Countries that End in R | 0 | - | 4.87 | 118,897 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,665 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,845 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,537 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,373 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,268 |
| Countries That End in Y | 0 | - | 4.91 | 185,804 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,728 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,721 |
| Countries that End in I | 0 | - | 4.94 | 135,027 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,897 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,748 |
| Countries That End in NIA | 0 | - | 4.92 | 109,697 |
| Countries That End in BIA | 0 | - | 4.93 | 149,090 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,974 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,305 |
| Countries That End in RIA | 0 | - | 4.93 | 126,730 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,899 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,296 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,531 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,934 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,506 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,502 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,917 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,411 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,408 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,355 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,146 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,838 |
| Countries that End in L | 0 | - | 4.94 | 156,744 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,153 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,237 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,950 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,882 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,913 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,549 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,505 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,886 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,407 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,264 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,783 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,047 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,667 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,802 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,053 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,596 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,551 |
| One Border Countries | 0 | - | 4.98 | 468,935 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,940 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,830,913 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,626,694 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,779 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,960 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,987 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,448 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,604 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,124 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,424 |
| Countries by National Anthem | 0 | - | 4.93 | 71,257 |
| NATO Countries | 0 | - | 4.98 | 280,768 |
| EU Countries Quiz | 0 | - | 4.99 | 274,655 |
| Recently Independent Countries | 0 | - | 4.98 | 159,348 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,857 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,208 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,706 |
