| Countries by National Anthem | 0 | - | 4.92 | 71,451 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,017,692 |
| Landlocked Countries | 0 | - | 4.99 | 427,846 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,816,632 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,168 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,218 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,730 |
| Island Countries | 0 | - | 4.99 | 713,286 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,195 |
| Himalayan Countries | 0 | - | 4.93 | 141,075 |
| Andean Countries | 0 | - | 4.94 | 85,931 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,033 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,676 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,582 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,781 |
| Danube Countries | 0 | - | 4.97 | 72,626 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,895 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,034 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,562 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,041 |
| European Landlocked Countries | 0 | - | 4.99 | 147,839 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,631 |
| Countries with the Most Species | 0 | - | 4.99 | 103,682 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,738 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,839 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,982 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,969 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,719 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,188 |
| Countries in the Alps | 0 | - | 4.87 | 119,072 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,160 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,275 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,101 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,234 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,206 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,437 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,655 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,048 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,548 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,360 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,987 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,858 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,721 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,974 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,073 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,299 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,773 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,860 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,930 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,622 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,715 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,651 |
| Largest Countries By Category | 0 | - | 4.97 | 159,214 |
| Countries by Countries | 0 | - | 4.97 | 63,869 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,903 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,552 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,465 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,308 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,900 |
| Northernmost Countries | 0 | - | 4.99 | 364,905 |
| Countries of South America | 0 | - | 5.00 | 935,106 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,635 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,895,165 |
| "Land" Countries | 0 | - | 4.98 | 339,211 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,457,048 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,267 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,702 |
| Countries with Megacities | 0 | - | 4.99 | 268,258 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,335 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,432 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,682 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,556 |
| Countries by Official Language | 0 | - | 4.95 | 196,358 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,120 |
| Countries in their Native Language | 0 | - | 4.99 | 200,067 |
| Independence from Whom | 0 | - | 4.99 | 213,583 |
| Subdivisions by Country | 0 | - | 4.87 | 50,686 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,782 |
| Megadiverse Countries | 0 | - | 4.96 | 149,862 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,234 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,600 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,870 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,275 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,571 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,970 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,392 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,665 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,223 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,303 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,931 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,531 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,541 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,255 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,683 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 72,019 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,933 |
| World Map Quiz | 0 | - | 4.81 | 65,997 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,242 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,877 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,661 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,308 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,784 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,096 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,630 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,747 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,914 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,793 |
| Tallest Countries North to South | 0 | - | 4.85 | 131,029 |
| Widest Countries East to West | 0 | - | 4.92 | 130,918 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,640 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,487 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,591 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,211 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,509 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,667 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,555 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,934 |
| Countries with Double Letters | 0 | - | 4.96 | 97,814 |
| Countries that End in N | 0 | - | 4.95 | 172,811 |
| Countries with Five Letters | 0 | - | 4.96 | 284,885 |
| Countries with Six Letters | 0 | - | 4.94 | 215,151 |
| Countries with W | 0 | - | 4.96 | 161,450 |
| Countries with Z | 0 | - | 4.98 | 293,211 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,821 |
| Countries That End in U | 0 | - | 4.95 | 121,468 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,575 |
| Countries that End in O | 0 | - | 4.92 | 160,435 |
| Countries that End in R | 0 | - | 4.87 | 119,322 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,093 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,293 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,821 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,312 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,999 |
| Countries That End in Y | 0 | - | 4.91 | 186,214 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,541 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,502 |
| Countries that End in I | 0 | - | 4.94 | 135,465 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,482 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,192 |
| Countries That End in NIA | 0 | - | 4.92 | 110,208 |
| Countries That End in BIA | 0 | - | 4.93 | 149,799 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 168,018 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,965 |
| Countries That End in RIA | 0 | - | 4.93 | 127,206 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,604 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,104 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,488 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 126,950 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,501 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,968 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,531 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,626 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,141 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,788 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,700 |
| Countries that End in L | 0 | - | 4.94 | 157,305 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,862 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,395 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,926 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,193 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,580 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,780 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,405 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,580 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,491 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,290 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,375 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,321 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,989 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,900 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,397 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,856,100 |
| One Border Countries | 0 | - | 4.98 | 472,927 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,663,124 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,529 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,646 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,907 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,282 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,445 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,757 |
| NATO Countries | 0 | - | 4.98 | 284,338 |
| EU Countries Quiz | 0 | - | 4.99 | 279,264 |
| Recently Independent Countries | 0 | - | 4.98 | 160,597 |
| French-Speaking Countries | 0 | - | 4.85 | 272,022 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,284 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,418 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,218 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,405 |
| German-Speaking Countries | 0 | - | 4.91 | 146,120 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,129,717 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,824 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,944 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,347 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,930 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,995 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 121,079 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 114,271 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 113,681 |
| Olympic Host Countries | 0 | - | 4.98 | 202,407 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,334 |
