| Countries by Former Name | 0 | - | 4.99 | 125,435 |
| Independence from Whom | 0 | - | 4.99 | 212,290 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,868 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,644 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,576 |
| Countries by Founding Story | 0 | - | 4.95 | 77,440 |
| Cities by Former Name | 0 | - | 4.83 | 91,788 |
| Recently Independent Countries | 0 | - | 4.98 | 159,564 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,368 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,942 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,466 |
| Historical City to Country | 0 | - | 4.84 | 78,677 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,645,073 |
| Landlocked Countries | 0 | - | 4.99 | 422,771 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,784,259 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,960 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,571 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,341 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,980 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,371 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,675 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,482 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,912 |
| Himalayan Countries | 0 | - | 4.95 | 139,083 |
| Andean Countries | 0 | - | 4.93 | 84,827 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,056 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,155 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,633 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,946 |
| Danube Countries | 0 | - | 4.97 | 72,113 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,153 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,516 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,482 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,983 |
| European Landlocked Countries | 0 | - | 4.99 | 147,246 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,798 |
| Countries with the Most Species | 0 | - | 4.99 | 103,323 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,920 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,818 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,638 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,757 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,604 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,336 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,754 |
| Countries in the Alps | 0 | - | 4.87 | 118,330 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,627 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,228 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,732 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,688 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,607 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,013 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,771 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,580 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,231 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,938 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,701 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,578 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,308 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,548 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,612 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,092 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,378 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,582 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,225 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,369 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,367 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,295 |
| Largest Countries By Category | 0 | - | 4.97 | 158,361 |
| Countries by Countries | 0 | - | 4.96 | 63,332 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,796 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,581 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,314 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,784 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,588 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,126 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,634 |
| All Countries by Population With a Map | 0 | - | 4.99 | 109,861 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,105 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,761 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,320 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,746 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,813 |
| Island Countries | 0 | - | 4.99 | 711,323 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,890 |
| Northernmost Countries | 0 | - | 4.99 | 362,348 |
| Countries of South America | 0 | - | 5.00 | 928,485 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,328 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,710 |
| "Land" Countries | 0 | - | 4.98 | 337,568 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,966 |
| Countries by Independence Day | 0 | - | 4.62 | 52,795 |
| Former Countries by Capital | 0 | - | 4.45 | 127,632 |
| Former Countries | 0 | - | 4.75 | 133,984 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,660 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,134 |
| Battle to Country | 0 | - | 4.91 | 53,613 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,980 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,134 |
| Countries with Megacities | 0 | - | 4.99 | 265,130 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,953 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,603 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,215 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,673 |
| Countries by Official Language | 0 | - | 4.95 | 195,416 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,601 |
| Countries in their Native Language | 0 | - | 4.99 | 199,197 |
| Subdivisions by Country | 0 | - | 4.87 | 50,467 |
| Megadiverse Countries | 0 | - | 4.96 | 135,078 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,225 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,396 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,275 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,135 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,232 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,373 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,699 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,174 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,856 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,933 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,250 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,005 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,401 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,536 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,449 |
| World Map Quiz | 0 | - | 4.81 | 65,202 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,702 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,427 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,225 |
| Countries by Road Signs | 0 | - | 4.98 | 54,087 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,254 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,370 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,082 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,474 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,984 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,090 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,370 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,486 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,630 |
| Widest Countries East to West | 0 | - | 4.92 | 129,727 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,475 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,475 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,152 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,821 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,666 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,945 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,401 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,815 |
| Countries with Double Letters | 0 | - | 4.96 | 96,417 |
| Countries that End in N | 0 | - | 4.95 | 171,298 |
| Countries with Five Letters | 0 | - | 4.96 | 282,805 |
| Countries with Six Letters | 0 | - | 4.94 | 213,749 |
| Countries with W | 0 | - | 4.97 | 160,457 |
| Countries with Z | 0 | - | 4.98 | 291,661 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,823 |
| Countries That End in U | 0 | - | 4.95 | 120,913 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,587 |
| Countries that End in O | 0 | - | 4.92 | 159,569 |
| Countries that End in R | 0 | - | 4.87 | 119,005 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,768 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,262 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,776 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,547 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,463 |
| Countries That End in Y | 0 | - | 4.91 | 185,925 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,027 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,946 |
| Countries that End in I | 0 | - | 4.94 | 135,145 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,206 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,864 |
| Countries That End in NIA | 0 | - | 4.92 | 109,843 |
| Countries That End in BIA | 0 | - | 4.93 | 149,280 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,193 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,489 |
| Countries That End in RIA | 0 | - | 4.93 | 126,862 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,082 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,822 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,808 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,240 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,793 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,626 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,088 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,463 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,598 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,473 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,382 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,069 |
| Countries that End in L | 0 | - | 4.94 | 156,900 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,142 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,286 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,078 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,004 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,046 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,906 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,769 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,206 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,915 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,575 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,938 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,129 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,727 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,916 |
