| Independence from Whom | 0 | - | 4.99 | 213,437 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,689 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,928 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,300 |
| Countries by Founding Story | 0 | - | 4.95 | 77,920 |
| Landlocked Countries | 0 | - | 4.99 | 427,370 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,979,502 |
| Recently Independent Countries | 0 | - | 4.98 | 160,526 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,189 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,110 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,513 |
| Countries by Former Name | 0 | - | 4.99 | 125,990 |
| Historical City to Country | 0 | - | 4.85 | 79,106 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,976 |
| Himalayan Countries | 0 | - | 4.93 | 140,874 |
| Andean Countries | 0 | - | 4.94 | 85,828 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,943 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,521 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,484 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,707 |
| Danube Countries | 0 | - | 4.97 | 72,570 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,816 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,986 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,468 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,943 |
| European Landlocked Countries | 0 | - | 4.99 | 147,783 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,556 |
| Countries with the Most Species | 0 | - | 4.99 | 103,655 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,657 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,817 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,960 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,932 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,686 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,144 |
| Countries in the Alps | 0 | - | 4.87 | 119,000 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,036 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,169 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,070 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,188 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,143 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,400 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,611 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,003 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,518 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,322 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,960 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,834 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,683 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,937 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,034 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,170 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,746 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,548 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,855 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,381 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,532 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,623 |
| Largest Countries By Category | 0 | - | 4.97 | 159,115 |
| Countries by Countries | 0 | - | 4.97 | 63,819 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,469 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,451 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,708 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,482 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,566 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,241 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,337 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,634 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,027 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,621 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,285 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,577 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,933 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,879 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,189 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,727 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,758 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,780 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,987 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,733 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,079 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,440 |
| Island Countries | 0 | - | 4.99 | 713,057 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,313 |
| Northernmost Countries | 0 | - | 4.99 | 364,655 |
| Countries of South America | 0 | - | 5.00 | 934,470 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,721 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,476 |
| "Land" Countries | 0 | - | 4.98 | 339,057 |
| Former Countries by Capital | 0 | - | 4.45 | 127,902 |
| Former Countries | 0 | - | 4.77 | 134,328 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,483 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,536 |
| Countries with Megacities | 0 | - | 4.99 | 267,941 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,192 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,353 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,512 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,459 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,382 |
| Countries by Official Language | 0 | - | 4.95 | 196,251 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,986 |
| Countries in their Native Language | 0 | - | 4.99 | 199,976 |
| Subdivisions by Country | 0 | - | 4.87 | 50,673 |
| Megadiverse Countries | 0 | - | 4.96 | 149,349 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,157 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,587 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,819 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,263 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,493 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,634 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,176 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,288 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,812 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,499 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,514 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,225 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,649 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,984 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,775 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,621 |
| Battle to Country | 0 | - | 4.91 | 54,123 |
| World Map Quiz | 0 | - | 4.81 | 65,937 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,967 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,828 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,299 |
| Countries by Road Signs | 0 | - | 4.98 | 54,457 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,547 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,250 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,720 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,969 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,571 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,682 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,871 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,771 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,964 |
| Widest Countries East to West | 0 | - | 4.92 | 130,868 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,633 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,418 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,570 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,172 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,131 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,625 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,542 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,925 |
| Countries with Double Letters | 0 | - | 4.96 | 97,676 |
| Countries that End in N | 0 | - | 4.95 | 172,670 |
| Countries with Five Letters | 0 | - | 4.96 | 284,707 |
| Countries with Six Letters | 0 | - | 4.94 | 215,005 |
| Countries with W | 0 | - | 4.96 | 161,346 |
| Countries with Z | 0 | - | 4.98 | 293,067 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,719 |
| Countries That End in U | 0 | - | 4.95 | 121,406 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,465 |
| Countries that End in O | 0 | - | 4.92 | 160,386 |
| Countries that End in R | 0 | - | 4.87 | 119,290 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,070 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,186 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 186,565 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,231 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,864 |
| Countries That End in Y | 0 | - | 4.91 | 186,184 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,381 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,446 |
| Countries that End in I | 0 | - | 4.94 | 135,435 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,343 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,154 |
| Countries That End in NIA | 0 | - | 4.92 | 110,169 |
| Countries That End in BIA | 0 | - | 4.93 | 149,752 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,953 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,920 |
| Countries That End in RIA | 0 | - | 4.93 | 127,163 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,559 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,991 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,417 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,879 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,435 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,933 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,473 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,616 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,073 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,748 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,929 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,640 |
| Countries that End in L | 0 | - | 4.94 | 157,267 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,653 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,383 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,900 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,166 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,554 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,687 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,326 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,539 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,431 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,212 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,331 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,301 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,976 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,881 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,373 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,244 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,034 |
