| Independence from Whom | 0 | - | 4.99 | 185,462 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,380 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,114 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,827 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,500 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,903,667 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,659 |
| Countries of the World in 1900 | 0 | - | 4.88 | 66,284 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 170,492 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 127,983 |
| Countries by Former Name | 0 | - | 4.99 | 113,805 |
| Historical City to Country | 0 | - | 4.82 | 72,286 |
| Members of the Arab League | 0 | - | 4.85 | 61,792 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,828 |
| Himalayan Countries | 0 | - | 4.94 | 104,694 |
| Andean Countries | 0 | - | 4.91 | 58,045 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,985 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,292 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,643 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,017 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,263 |
| Danube Countries | 0 | - | 4.97 | 56,620 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,656 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,818 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,143 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,316 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,471 |
| European Landlocked Countries | 0 | - | 4.99 | 115,478 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,296 |
| Countries with the Most Species | 0 | - | 4.99 | 89,516 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,316 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,664 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,992 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,228 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,393 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,669 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,100 |
| Countries in the Alps | 0 | - | 4.84 | 102,579 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,262 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,008 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,545 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,203 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,913 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,508 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,580 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,116 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,292 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,616 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,385 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,568 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,645 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,436 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,919 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,423 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,913 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,303 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,351 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,967 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,766 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,254 |
| Largest Countries By Category | 0 | - | 4.96 | 144,812 |
| Countries by Countries | 0 | - | 4.96 | 54,604 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,068,760 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,339 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,669 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,136 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,570 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,593 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,115 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,661 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,924 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,920 |
| Countries Settled by Vikings | 0 | - | 4.93 | 111,406 |
| Warsaw Pact Countries | 0 | - | 4.84 | 80,154 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 49,443 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,960 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,984 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,273 |
| Island Countries Quiz | 0 | - | 4.99 | 660,295 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,612 |
| Northernmost Countries | 0 | - | 4.99 | 327,026 |
| Countries of South America | 0 | - | 5.00 | 792,669 |
| Countries of Oceania | 0 | - | 5.00 | 892,958 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,149,497 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,571,307 |
| Former Countries by Capital | 0 | - | 4.44 | 103,814 |
| Former Countries | 0 | - | 4.72 | 124,567 |
| Guerrillas by Country | 0 | - | 4.45 | 38,497 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,769 |
| Countries with Megacities | 0 | - | 4.99 | 197,037 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,388 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,852 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,250 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,819 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,739 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 162,049 |
| Countries by Official Language | 0 | - | 4.96 | 171,646 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,111 |
| Countries in their Native Language | 0 | - | 4.98 | 178,231 |
| Subdivisions by Country | 0 | - | 4.82 | 46,423 |
| Megadiverse Countries | 0 | - | 4.96 | 125,282 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,313 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,643 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,365 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,531 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,084 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,015 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,337 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,771 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,573 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,971 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,945 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,513 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,240 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 82,098 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,923 |
| Battle to Country | 0 | - | 4.92 | 35,381 |
| World Map Quiz | 0 | - | 4.90 | 49,328 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,318 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,452 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,655 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,869 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,966 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,517 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,280 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,553 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,249 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,927 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,419 |
| Widest Countries East to West | 0 | - | 4.93 | 119,335 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,811 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,954 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,636 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,550 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,792 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,124 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,444 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,042 |
| Countries with Double Letters | 0 | - | 4.96 | 68,328 |
| Countries that End in N | 0 | - | 4.94 | 132,666 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,692 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,994 |
| Countries with W | 0 | - | 4.96 | 122,681 |
| Countries with Z | 0 | - | 4.98 | 244,373 |
| Countries with Letters Missing | 0 | - | 4.97 | 164,064 |
| Countries That End in U | 0 | - | 4.95 | 107,546 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,453 |
| Countries that End in O | 0 | - | 4.92 | 146,916 |
| Countries that End in R | 0 | - | 4.85 | 96,463 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,220 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,306 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,742 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,208 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,269 |
| Countries That End in Y | 0 | - | 4.90 | 161,621 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,958 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,735 |
| Countries that End in I | 0 | - | 4.92 | 114,495 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,523 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,260 |
| Countries That End in NIA | 0 | - | 4.93 | 100,829 |
| Countries That End in BIA | 0 | - | 4.91 | 126,064 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,229 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,733 |
| Countries That End in RIA | 0 | - | 4.90 | 100,947 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,426 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,694 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,657 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,551 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,356 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,219 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,702 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,814 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,705 |
| Countries that End in L | 0 | - | 4.95 | 134,262 |
| "Land" Countries | 0 | - | 4.98 | 289,173 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,802 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,175 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,266 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,176 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,596 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,839 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,193 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,452 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,035 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,843 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,846 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,882 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,052 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,298 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,038 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,311,027 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,546 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,062,852 |
| One Border Countries | 0 | - | 4.98 | 410,011 |
| Countries Unconquered since 1850 | 0 | - | 4.38 | 62,307 |
| Longest Uninterrupted Democracies | 0 | - | 4.07 | 31,663 |
| Most Recent Country To ... | 0 | - | 4.34 | 51,541 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 93,471 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.79 | 36,081 |
