| Countries by Former Name | 0 | - | 4.99 | 124,879 |
| Independence from Whom | 0 | - | 4.99 | 211,209 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,620 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,343 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,901 |
| Countries by Founding Story | 0 | - | 4.95 | 77,022 |
| Cities by Former Name | 0 | - | 4.83 | 91,401 |
| Recently Independent Countries | 0 | - | 4.98 | 158,955 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,497 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,632 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,280 |
| Historical City to Country | 0 | - | 4.83 | 78,411 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,300,024 |
| Landlocked Countries | 0 | - | 4.99 | 418,370 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,798 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,320 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,054 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,038 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,297 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,131 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,411 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,038 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,695 |
| Himalayan Countries | 0 | - | 4.94 | 137,170 |
| Andean Countries | 0 | - | 4.95 | 83,793 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,041 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,438 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,725 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,266 |
| Danube Countries | 0 | - | 4.97 | 71,597 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,464 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,998 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,543 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,604 |
| European Landlocked Countries | 0 | - | 4.99 | 146,705 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,044 |
| Countries with the Most Species | 0 | - | 4.99 | 102,840 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,182 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,246 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,409 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,565 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,266 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,939 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,319 |
| Countries in the Alps | 0 | - | 4.87 | 117,603 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,079 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,268 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,373 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,925 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,031 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,404 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,212 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,138 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,935 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,508 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,448 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,308 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,882 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,156 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,171 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,071 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,024 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,541 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,442 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,108 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,098 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,954 |
| Largest Countries By Category | 0 | - | 4.97 | 157,550 |
| Countries by Countries | 0 | - | 4.96 | 62,790 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,137 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,435 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,147 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,730 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,461 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,437 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,263 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,354 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,602 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,276 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,529 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,462 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,845 |
| Island Countries | 0 | - | 4.99 | 709,542 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,517 |
| Northernmost Countries | 0 | - | 4.99 | 360,240 |
| Countries of South America | 0 | - | 5.00 | 922,288 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,165 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,928 |
| "Land" Countries | 0 | - | 4.98 | 335,679 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,551 |
| Countries by Independence Day | 0 | - | 4.61 | 52,703 |
| Former Countries by Capital | 0 | - | 4.45 | 127,348 |
| Former Countries | 0 | - | 4.75 | 133,116 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,630 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,614 |
| Battle to Country | 0 | - | 4.91 | 53,104 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,590 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,848 |
| Countries with Megacities | 0 | - | 4.99 | 254,601 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,707 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,894 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,002 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,883 |
| Countries by Official Language | 0 | - | 4.95 | 194,555 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,413 |
| Countries in their Native Language | 0 | - | 4.99 | 198,099 |
| Subdivisions by Country | 0 | - | 4.86 | 50,266 |
| Megadiverse Countries | 0 | - | 4.96 | 134,736 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,354 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,159 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,724 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,001 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,657 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,802 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,462 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,965 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,848 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,682 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,953 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,753 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,111 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,300 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,062 |
| World Map Quiz | 0 | - | 4.81 | 64,430 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,335 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,976 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,713 |
| Countries by Road Signs | 0 | - | 4.98 | 53,606 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,411 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,880 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,592 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,208 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,471 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,642 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,787 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,236 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,242 |
| Widest Countries East to West | 0 | - | 4.92 | 129,323 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,374 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,900 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,982 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,481 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,162 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,502 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,219 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,716 |
| Countries with Double Letters | 0 | - | 4.97 | 95,008 |
| Countries that End in N | 0 | - | 4.95 | 169,791 |
| Countries with Five Letters | 0 | - | 4.96 | 279,578 |
| Countries with Six Letters | 0 | - | 4.94 | 212,375 |
| Countries with W | 0 | - | 4.97 | 159,459 |
| Countries with Z | 0 | - | 4.98 | 289,707 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,664 |
| Countries That End in U | 0 | - | 4.95 | 120,378 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,682 |
| Countries that End in O | 0 | - | 4.92 | 159,166 |
| Countries that End in R | 0 | - | 4.87 | 118,713 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,489 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,230 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,057 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,051 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,636 |
| Countries That End in Y | 0 | - | 4.90 | 185,627 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,163 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,360 |
| Countries that End in I | 0 | - | 4.94 | 134,837 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,015 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,552 |
| Countries That End in NIA | 0 | - | 4.92 | 109,488 |
| Countries That End in BIA | 0 | - | 4.93 | 148,801 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,660 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,015 |
| Countries That End in RIA | 0 | - | 4.93 | 126,498 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,587 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,563 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,160 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,501 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,056 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,290 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,643 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,191 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,075 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,174 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,774 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,481 |
| Countries that End in L | 0 | - | 4.94 | 156,512 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,822 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,145 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,812 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,688 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,738 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,684 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,083 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,566 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,046 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,538 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,532 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,933 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,584 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,634 |
