| Countries by Former Name | 0 | - | 4.99 | 124,911 |
| Independence from Whom | 0 | - | 4.99 | 211,280 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,684 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,376 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,963 |
| Countries by Founding Story | 0 | - | 4.95 | 77,054 |
| Cities by Former Name | 0 | - | 4.83 | 91,422 |
| Recently Independent Countries | 0 | - | 4.98 | 159,002 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,563 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,735 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,379 |
| Historical City to Country | 0 | - | 4.84 | 78,431 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,327,374 |
| Landlocked Countries | 0 | - | 4.99 | 418,835 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,205 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,384 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,099 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,075 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,432 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,154 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,434 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,076 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,960 |
| Himalayan Countries | 0 | - | 4.94 | 137,384 |
| Andean Countries | 0 | - | 4.95 | 83,912 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,211 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,624 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,820 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,340 |
| Danube Countries | 0 | - | 4.97 | 71,646 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,533 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,045 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,623 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,707 |
| European Landlocked Countries | 0 | - | 4.99 | 146,763 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,117 |
| Countries with the Most Species | 0 | - | 4.99 | 102,899 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,250 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,272 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,429 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,584 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,294 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,978 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,354 |
| Countries in the Alps | 0 | - | 4.87 | 117,675 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,119 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,349 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,404 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,972 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,081 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,469 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,271 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,175 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,961 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,546 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,471 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,334 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,915 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,179 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,201 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,156 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,056 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,562 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,506 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,314 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,199 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,991 |
| Largest Countries By Category | 0 | - | 4.97 | 157,619 |
| Countries by Countries | 0 | - | 4.96 | 62,828 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,194 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,443 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,156 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,807 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,466 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,473 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,291 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,485 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,640 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,314 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,885 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,571 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,048 |
| Island Countries | 0 | - | 4.99 | 709,706 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,945 |
| Northernmost Countries | 0 | - | 4.99 | 360,415 |
| Countries of South America | 0 | - | 5.00 | 922,766 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,843 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,035 |
| "Land" Countries | 0 | - | 4.98 | 335,774 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,583 |
| Countries by Independence Day | 0 | - | 4.61 | 52,711 |
| Former Countries by Capital | 0 | - | 4.45 | 127,363 |
| Former Countries | 0 | - | 4.75 | 133,239 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,494 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,664 |
| Battle to Country | 0 | - | 4.91 | 53,153 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,620 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,992 |
| Countries with Megacities | 0 | - | 4.99 | 259,188 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,861 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,975 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,145 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,977 |
| Countries by Official Language | 0 | - | 4.95 | 194,623 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,503 |
| Countries in their Native Language | 0 | - | 4.99 | 198,166 |
| Subdivisions by Country | 0 | - | 4.86 | 50,284 |
| Megadiverse Countries | 0 | - | 4.96 | 134,756 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,532 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,180 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,746 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,014 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,698 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,838 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,476 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,986 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,931 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,707 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,988 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,769 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,144 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,319 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,161 |
| World Map Quiz | 0 | - | 4.81 | 64,502 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,555 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,023 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,745 |
| Countries by Road Signs | 0 | - | 4.98 | 53,645 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,480 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,917 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,630 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,306 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,511 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,666 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,820 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,255 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,275 |
| Widest Countries East to West | 0 | - | 4.92 | 129,360 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,380 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,949 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,988 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,504 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,210 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,533 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,228 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,724 |
| Countries with Double Letters | 0 | - | 4.97 | 95,071 |
| Countries that End in N | 0 | - | 4.95 | 169,962 |
| Countries with Five Letters | 0 | - | 4.96 | 280,096 |
| Countries with Six Letters | 0 | - | 4.94 | 212,454 |
| Countries with W | 0 | - | 4.97 | 159,512 |
| Countries with Z | 0 | - | 4.98 | 289,779 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,723 |
| Countries That End in U | 0 | - | 4.95 | 120,405 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,734 |
| Countries that End in O | 0 | - | 4.92 | 159,190 |
| Countries that End in R | 0 | - | 4.87 | 118,727 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,506 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,312 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,093 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,072 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,657 |
| Countries That End in Y | 0 | - | 4.90 | 185,645 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,217 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,410 |
| Countries that End in I | 0 | - | 4.94 | 134,858 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,060 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,570 |
| Countries That End in NIA | 0 | - | 4.92 | 109,510 |
| Countries That End in BIA | 0 | - | 4.93 | 148,836 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,700 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,049 |
| Countries That End in RIA | 0 | - | 4.93 | 126,527 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,612 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,662 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,212 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,566 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,099 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,315 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,679 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,229 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,112 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,188 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,812 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,527 |
| Countries that End in L | 0 | - | 4.94 | 156,536 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,960 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,152 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,830 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,717 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,773 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,762 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,154 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,609 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,116 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,601 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,577 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,949 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,594 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,656 |
