| Spanish-Speaking Countries | 0 | - | 4.95 | 374,961 |
| Countries by Official Language | 0 | - | 4.95 | 194,879 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,861 |
| Countries in their Native Language | 0 | - | 4.99 | 198,415 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,751 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,361 |
| French-Speaking Countries | 0 | - | 4.85 | 270,453 |
| German-Speaking Countries | 0 | - | 4.92 | 145,528 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,060 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,435,608 |
| Landlocked Countries | 0 | - | 4.99 | 420,169 |
| English Speaking Countries | 0 | - | 4.64 | 357,290 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,765,651 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,546 |
| Himalayan Countries | 0 | - | 4.95 | 137,963 |
| Andean Countries | 0 | - | 4.95 | 84,199 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,421 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,121 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,057 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,507 |
| Danube Countries | 0 | - | 4.97 | 71,786 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,729 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,181 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,907 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,124 |
| European Landlocked Countries | 0 | - | 4.99 | 146,925 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,319 |
| Countries with the Most Species | 0 | - | 4.99 | 103,061 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,488 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,481 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,644 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,418 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,098 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,484 |
| Countries in the Alps | 0 | - | 4.87 | 117,914 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 98,568 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,638 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,523 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,418 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,259 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,815 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,433 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,310 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,057 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,676 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,550 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,400 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,034 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,325 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,334 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,470 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,147 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,663 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,757 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,010 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,584 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,079 |
| Largest Countries By Category | 0 | - | 4.97 | 157,867 |
| Countries by Countries | 0 | - | 4.97 | 62,978 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,422 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,198 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,502 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,471 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,643 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,034 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,061 |
| Island Countries | 0 | - | 4.99 | 710,263 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,526 |
| Northernmost Countries | 0 | - | 4.99 | 361,095 |
| Countries of South America | 0 | - | 5.00 | 924,681 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,574 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,938 |
| "Land" Countries | 0 | - | 4.98 | 336,119 |
| Top World Languages | 0 | - | 4.92 | 821,879 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,732 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,885 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,388 |
| Countries with Megacities | 0 | - | 4.99 | 263,076 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,230 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,198 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,522 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,234 |
| Independence from Whom | 0 | - | 4.99 | 211,649 |
| Subdivisions by Country | 0 | - | 4.86 | 50,345 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,936 |
| Megadiverse Countries | 0 | - | 4.96 | 134,853 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,242 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,829 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,054 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,872 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,461 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,178 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,919 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,552 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,031 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,297 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,783 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,075 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,853 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,238 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,406 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,580 |
| World Map Quiz | 0 | - | 4.81 | 64,813 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,252 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,168 |
| Countries by Founding Story | 0 | - | 4.95 | 77,187 |
| Countries by Road Signs | 0 | - | 4.98 | 53,786 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,736 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,066 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,792 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,700 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,674 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,809 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,946 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,339 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,409 |
| Widest Countries East to West | 0 | - | 4.92 | 129,478 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,411 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,126 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,049 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,620 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,385 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,677 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,301 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,758 |
| Countries with Double Letters | 0 | - | 4.97 | 95,335 |
| Countries that End in N | 0 | - | 4.95 | 170,377 |
| Countries with Five Letters | 0 | - | 4.96 | 281,233 |
| Countries with Six Letters | 0 | - | 4.94 | 212,784 |
| Countries with W | 0 | - | 4.97 | 159,694 |
| Countries with Z | 0 | - | 4.98 | 290,593 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,963 |
| Countries That End in U | 0 | - | 4.95 | 120,510 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,976 |
| Countries that End in O | 0 | - | 4.92 | 159,281 |
| Countries that End in R | 0 | - | 4.87 | 118,801 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,566 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,577 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,307 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,205 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,813 |
| Countries That End in Y | 0 | - | 4.91 | 185,713 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,507 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,587 |
| Countries that End in I | 0 | - | 4.94 | 134,938 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,698 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,659 |
| Countries That End in NIA | 0 | - | 4.92 | 109,614 |
| Countries That End in BIA | 0 | - | 4.93 | 148,967 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,869 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,194 |
| Countries That End in RIA | 0 | - | 4.93 | 126,627 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,762 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,051 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,396 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,788 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,317 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,407 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,784 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,355 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,278 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,279 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,975 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,695 |
| Countries that End in L | 0 | - | 4.94 | 156,645 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,691 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,187 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,907 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,816 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,863 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,177 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,362 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,781 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,298 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,805 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,689 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,009 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,636 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,750 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,871 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,269 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,216 |
| One Border Countries | 0 | - | 4.98 | 468,459 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,827,760 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,621,565 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,890 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,685 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,715 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,860 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,376 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,513 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,057 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,380 |
| Countries by National Anthem | 0 | - | 4.92 | 71,229 |
| NATO Countries | 0 | - | 4.98 | 280,200 |
| EU Countries Quiz | 0 | - | 4.99 | 273,938 |
| Recently Independent Countries | 0 | - | 4.98 | 159,198 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,809 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,971 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,203 |
