| Countries with Double Letters | 0 | - | 4.96 | 79,931 |
| Countries that End in N | 0 | - | 4.93 | 144,166 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 242,988 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,363 |
| Countries with W | 0 | - | 4.97 | 131,849 |
| Countries with Z | 0 | - | 4.98 | 273,483 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,148 |
| Countries That End in U | 0 | - | 4.95 | 113,211 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,641 |
| Countries that End in R | 0 | - | 4.84 | 99,385 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,034 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,235 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,230 |
| Countries by Last Two Letters | 0 | - | 4.89 | 121,007 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,522 |
| Countries That End in Y | 0 | - | 4.91 | 181,162 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,683 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,475 |
| Countries that End in I | 0 | - | 4.92 | 116,972 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,129 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,481 |
| Countries That End in NIA | 0 | - | 4.92 | 104,492 |
| Countries That End in BIA | 0 | - | 4.92 | 141,538 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,035 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 113,928 |
| Countries That End in RIA | 0 | - | 4.89 | 104,848 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,007 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 212,925 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 126,016 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 117,695 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,692 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 70,674 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 47,804 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 96,875 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,013 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,699 |
| Countries with the Word "And" | 0 | - | 4.98 | 88,848 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,608 |
| Countries that End in L | 0 | - | 4.94 | 150,961 |
| "Land" Countries | 0 | - | 4.98 | 298,361 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 195,728 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,718 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 374,026 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,657,375 |
| Countries with Four Letters | 0 | - | 4.99 | 384,911 |
| Sahara Desert Countries | 0 | - | 4.98 | 141,548 |
| Himalayan Countries | 0 | - | 4.95 | 118,637 |
| Andean Countries | 0 | - | 4.92 | 66,463 |
| Countries with the Oldest Median Age | 0 | - | 4.83 | 67,553 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,116 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,395 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,181 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 57,869 |
| Danube Countries | 0 | - | 4.97 | 59,859 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,567 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 80,922 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,315 |
| Countries with the Worst Passports | 0 | - | 4.91 | 60,697 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,437 |
| European Landlocked Countries | 0 | - | 4.99 | 139,812 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,362 |
| Countries with the Most Species | 0 | - | 4.99 | 91,710 |
| Countries 197 to 205 | 0 | - | 4.87 | 61,844 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,297 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,421 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,753 |
| Countries that Use the Peso | 0 | - | 4.83 | 48,898 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,335 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,776 |
| Countries in the Alps | 0 | - | 4.86 | 108,667 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,711 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 95,878 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,645 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,556 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,497 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,113 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 93,985 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,057 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,382 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 57,974 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,137 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,717 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,586 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,365 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,076 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,716 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,039 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,139 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,090 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,016 |
| World Countries - Blind Typing | 0 | - | 5.00 | 82,690 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,439 |
| Largest Countries By Category | 0 | - | 4.97 | 150,023 |
| Countries by Countries | 0 | - | 4.96 | 57,754 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,336,122 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,211 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,334 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,021 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 82,857 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,409,584 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 120,808 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 196,392 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 356,834 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 377,768 |
| Island Countries Quiz | 0 | - | 4.99 | 685,627 |
| Biggest Countries by Area | 0 | - | 5.00 | 979,702 |
| Northernmost Countries | 0 | - | 4.99 | 339,949 |
| Countries of South America | 0 | - | 5.00 | 848,969 |
| Countries of Oceania | 0 | - | 5.00 | 959,767 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,699,016 |
| Countries with J | 0 | - | 4.55 | 177,936 |
| Countries by Consonants | 0 | - | 4.43 | 75,616 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,226,627 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 155,357 |
| Countries with Megacities | 0 | - | 4.99 | 214,049 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,216 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 104,882 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 105,398 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 71,610 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 266,182 |
| Countries by Official Language | 0 | - | 4.95 | 182,098 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 279,096 |
| Countries in their Native Language | 0 | - | 4.98 | 187,033 |
| Independence from Whom | 0 | - | 4.99 | 197,447 |
| Subdivisions by Country | 0 | - | 4.86 | 48,162 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 121,898 |
| Megadiverse Countries | 0 | - | 4.96 | 129,826 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 119,557 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,161 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,082 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 153,987 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,822 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 84,906 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,326 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,582 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,097 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 64,710 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,143 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,303 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,668 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 71,560 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 67,948 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 95,606 |
| World Map Quiz | 0 | - | 4.88 | 56,256 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 131,181 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,784 |
| Countries by Founding Story | 0 | - | 4.94 | 71,787 |
| Countries by Road Signs | 0 | - | 4.98 | 48,757 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,591 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,461 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 114,947 |
| Countries With the Most Languages | 0 | - | 4.88 | 186,778 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,792 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,489 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,202 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,656 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,786 |
| Widest Countries East to West | 0 | - | 4.92 | 123,696 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,935 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,276 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,038 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,536 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 124,060 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,523 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,756 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,301 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,144 |
| City to Country Quiz #3 | 0 | - | 4.87 | 103,055 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,790 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 217,661 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,224 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 121,431 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 139,427 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,253 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 146,127 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,398 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 105,377 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,562 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,268 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,369,497 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 362,007 |
| One Border Countries | 0 | - | 4.97 | 435,984 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 96,456 |
| Every Country in its Official/Native Language | 0 | - | 4.97 | 20,826 |
| Most Similar Country Names | 0 | - | 4.15 | 44,965 |
| Longest Country Name A-Z | 0 | - | 4.36 | 39,483 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,594,570 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 80,839 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,417 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 114,711 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 106,982 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 86,982 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,139 |
| Countries by National Anthem | 0 | - | 4.93 | 69,581 |
| NATO Countries Quiz | 0 | - | 4.98 | 255,319 |
| EU Countries Quiz | 0 | - | 4.99 | 249,896 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 150,774 |
| French-Speaking Countries | 0 | - | 4.85 | 253,653 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,115 |
| Countries That Use the Euro | 0 | - | 4.92 | 73,436 |
