| Countries with Double Letters | 0 | - | 4.96 | 66,807 |
| Countries that End in N | 0 | - | 4.94 | 131,263 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,745 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,530 |
| Countries with W | 0 | - | 4.97 | 121,563 |
| Countries with Z | 0 | - | 4.98 | 242,322 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,527 |
| Countries That End in U | 0 | - | 4.94 | 106,890 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,237 |
| Countries that End in O | 0 | - | 4.92 | 146,344 |
| Countries that End in R | 0 | - | 4.86 | 96,098 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,843 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,511 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,837 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,557 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,482 |
| Countries That End in Y | 0 | - | 4.90 | 160,785 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,592 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,792 |
| Countries that End in I | 0 | - | 4.92 | 114,135 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,373 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,790 |
| Countries That End in NIA | 0 | - | 4.93 | 100,308 |
| Countries That End in BIA | 0 | - | 4.91 | 125,324 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,349 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,023 |
| Countries That End in RIA | 0 | - | 4.89 | 100,448 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,728 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,633 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,602 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,402 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,333 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,516 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,891 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,371 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,755 |
| Countries that End in L | 0 | - | 4.95 | 133,328 |
| "Land" Countries | 0 | - | 4.98 | 287,855 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,734 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,069 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,196 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,277 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,443,840 |
| Countries with Four Letters | 0 | - | 4.99 | 374,373 |
| Countries on the Equator | 0 | - | 4.82 | 132,357 |
| Members of the Arab League | 0 | - | 4.82 | 59,159 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,090 |
| Himalayan Countries | 0 | - | 4.95 | 102,401 |
| Andean Countries | 0 | - | 4.90 | 56,883 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,725 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,551 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,869 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,528 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,718 |
| Danube Countries | 0 | - | 4.97 | 56,355 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,390 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,587 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,296 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,759 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,369 |
| European Landlocked Countries | 0 | - | 4.99 | 114,832 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,739 |
| Countries with the Most Species | 0 | - | 4.99 | 89,082 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,810 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,429 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,805 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,746 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,101 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,445 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,670 |
| Countries in the Alps | 0 | - | 4.82 | 101,795 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,601 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,757 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,110 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,694 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,339 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,842 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,020 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,741 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,064 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,131 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,894 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,325 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,409 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,946 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,485 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,954 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,545 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,938 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,936 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,617 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,313 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,944 |
| Largest Countries By Category | 0 | - | 4.96 | 143,848 |
| Countries by Countries | 0 | - | 4.96 | 54,059 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,016,116 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,627 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,366 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,298 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 115,885 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,499 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,602 |
| Island Countries Quiz | 0 | - | 4.99 | 638,544 |
| Biggest Countries by Area | 0 | - | 5.00 | 924,448 |
| Northernmost Countries | 0 | - | 4.99 | 325,261 |
| Countries of South America | 0 | - | 5.00 | 783,336 |
| Countries of Oceania | 0 | - | 5.00 | 881,535 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,106,999 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,550,670 |
| Countries with J | 0 | - | 4.59 | 164,063 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 67,628 |
| Countries by Consonants | 0 | - | 4.44 | 72,398 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,078 |
| Countries with Megacities | 0 | - | 4.99 | 194,652 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,395 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,828 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,637 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,680 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,964 |
| Countries by Official Language | 0 | - | 4.95 | 153,448 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,640 |
| Countries in their Native Language | 0 | - | 4.98 | 176,957 |
| Independence from Whom | 0 | - | 4.99 | 182,915 |
| Subdivisions by Country | 0 | - | 4.82 | 46,171 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,830 |
| Megadiverse Countries | 0 | - | 4.96 | 124,725 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,914 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,992 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,119 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,047 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,607 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,559 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,290 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,487 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,971 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,818 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,792 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,345 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,479 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,910 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,732 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,018 |
| World Map Quiz | 0 | - | 4.90 | 48,089 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 110,491 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,719 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,275 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,077 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,029 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,510 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,540 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,852 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,441 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,280 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,827 |
| Widest Countries East to West | 0 | - | 4.93 | 118,691 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,676 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,851 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,088 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,763 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,624 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,490 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,248 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,853 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,680 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,458 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,069 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,148 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,985 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,653 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,578 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,919 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,923 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 65,416 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,645 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,880 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,388 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,301,771 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,483 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,034,131 |
| One Border Countries | 0 | - | 4.98 | 406,501 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 92,421 |
| Most Similar Country Names | 0 | - | 4.15 | 43,433 |
| Longest Country Name A-Z | 0 | - | 4.36 | 36,516 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,355,376 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,327 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,363 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,207 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,472 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,389 |
| Countries by National Anthem | 0 | - | 4.94 | 61,620 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,454 |
| EU Countries Quiz | 0 | - | 4.99 | 225,956 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,319 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,161 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,499 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,041 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 215,781 |
| German-Speaking Countries | 0 | - | 4.87 | 117,140 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,291 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,649 |
