| Independence from Whom | 0 | - | 4.99 | 211,861 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,552 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,533 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,330 |
| Countries by Founding Story | 0 | - | 4.95 | 77,282 |
| Landlocked Countries | 0 | - | 4.99 | 421,047 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,505,210 |
| Recently Independent Countries | 0 | - | 4.98 | 159,351 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,037 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,444 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,037 |
| Countries by Former Name | 0 | - | 4.99 | 125,200 |
| Historical City to Country | 0 | - | 4.84 | 78,580 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,005 |
| Himalayan Countries | 0 | - | 4.95 | 138,314 |
| Andean Countries | 0 | - | 4.93 | 84,380 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,599 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,517 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,230 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,632 |
| Danube Countries | 0 | - | 4.97 | 71,904 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,881 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,303 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,096 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,572 |
| European Landlocked Countries | 0 | - | 4.99 | 147,034 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,463 |
| Countries with the Most Species | 0 | - | 4.99 | 103,152 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,618 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,535 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,677 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,470 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,153 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,559 |
| Countries in the Alps | 0 | - | 4.87 | 118,043 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,358 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,838 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,581 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,507 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,385 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,874 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,541 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,402 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,113 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,749 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,587 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,447 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,121 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,386 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,421 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,670 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,217 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,728 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,889 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,473 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,825 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,144 |
| Largest Countries By Category | 0 | - | 4.97 | 158,020 |
| Countries by Countries | 0 | - | 4.96 | 63,086 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,544 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,238 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,529 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,276 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,883 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,567 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,521 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,713 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,373 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,233 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,807 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,285 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,580 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,302 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,677 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,534 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,372 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,849 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,487 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,756 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,239 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,631 |
| Island Countries | 0 | - | 4.99 | 710,668 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,614 |
| Northernmost Countries | 0 | - | 4.99 | 361,525 |
| Countries of South America | 0 | - | 5.00 | 925,883 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,100 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,871 |
| "Land" Countries | 0 | - | 4.98 | 337,007 |
| Former Countries by Capital | 0 | - | 4.45 | 127,518 |
| Former Countries | 0 | - | 4.75 | 133,845 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,176 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,635 |
| Countries with Megacities | 0 | - | 4.99 | 263,888 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,483 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,331 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,755 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,385 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,807 |
| Countries by Official Language | 0 | - | 4.95 | 195,048 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,116 |
| Countries in their Native Language | 0 | - | 4.99 | 198,586 |
| Subdivisions by Country | 0 | - | 4.86 | 50,386 |
| Megadiverse Countries | 0 | - | 4.96 | 134,928 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,913 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,291 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,871 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,075 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,992 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,973 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,593 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,053 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,471 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,819 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,130 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,908 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,294 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,439 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,890 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,947 |
| Battle to Country | 0 | - | 4.91 | 53,405 |
| World Map Quiz | 0 | - | 4.81 | 64,954 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,726 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,254 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,828 |
| Countries by Road Signs | 0 | - | 4.98 | 53,887 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,894 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,161 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,884 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,941 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,799 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,920 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,216 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,390 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,500 |
| Widest Countries East to West | 0 | - | 4.92 | 129,562 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,429 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,264 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,086 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,694 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,474 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,760 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,332 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,780 |
| Countries with Double Letters | 0 | - | 4.96 | 95,944 |
| Countries that End in N | 0 | - | 4.95 | 170,856 |
| Countries with Five Letters | 0 | - | 4.96 | 281,969 |
| Countries with Six Letters | 0 | - | 4.94 | 213,268 |
| Countries with W | 0 | - | 4.97 | 160,121 |
| Countries with Z | 0 | - | 4.98 | 291,141 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,478 |
| Countries That End in U | 0 | - | 4.95 | 120,732 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,247 |
| Countries that End in O | 0 | - | 4.92 | 159,430 |
| Countries that End in R | 0 | - | 4.87 | 118,897 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,668 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,849 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,542 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,376 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,274 |
| Countries That End in Y | 0 | - | 4.91 | 185,804 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,736 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,725 |
| Countries that End in I | 0 | - | 4.94 | 135,028 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,905 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,750 |
| Countries That End in NIA | 0 | - | 4.92 | 109,698 |
| Countries That End in BIA | 0 | - | 4.93 | 149,092 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,977 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,309 |
| Countries That End in RIA | 0 | - | 4.93 | 126,730 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,904 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,302 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,532 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,939 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,509 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,505 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,920 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,412 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,414 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,357 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,152 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,841 |
| Countries that End in L | 0 | - | 4.94 | 156,744 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,163 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,237 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,950 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,886 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,914 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,553 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,508 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,889 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,410 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,269 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,785 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,048 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,668 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,802 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,643 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,565 |
| One Border Countries | 0 | - | 4.98 | 468,984 |
