| Boundary Waters | 0 | - | 4.93 | 81,561 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 75,748 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,563 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 329,733 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,368,939 |
| World Geography on a Map #1 | 0 | - | 4.93 | 67,853 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,607 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 110,662 |
| Members of the Arab League | 0 | - | 4.85 | 64,517 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,860 |
| Himalayan Countries | 0 | - | 4.95 | 106,795 |
| Andean Countries | 0 | - | 4.91 | 59,396 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,454 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,232 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,595 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,514 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,820 |
| Danube Countries | 0 | - | 4.96 | 56,975 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,994 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,099 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,015 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,931 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,202 |
| European Landlocked Countries | 0 | - | 4.99 | 136,396 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,337 |
| Countries with the Most Species | 0 | - | 4.99 | 89,694 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,845 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,875 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,164 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,695 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,655 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,928 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,532 |
| Countries in the Alps | 0 | - | 4.84 | 103,289 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,910 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,349 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,953 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,002 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,472 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,976 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,120 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,487 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,519 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,071 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,829 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,804 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,859 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,183 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,343 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,910 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,364 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,663 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,731 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,373 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,113 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,573 |
| Largest Countries By Category | 0 | - | 4.97 | 145,732 |
| Countries by Countries | 0 | - | 4.96 | 55,137 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,969 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,941 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 135,320 |
| Western Europe Map Quiz | 0 | - | 4.86 | 89,365 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 60,142 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,689 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 182,260 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,510 |
| Longest International Borders | 0 | - | 4.99 | 235,280 |
| Countries with Three Borders | 0 | - | 4.96 | 31,790 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,400 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 40,758 |
| World Capitals Quiz | 0 | - | 5.00 | 4,536,018 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,123,802 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,193,259 |
| Demonyms Quiz | 0 | - | 4.12 | 179,321 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,396,050 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,022 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,098 |
| Island Countries Quiz | 0 | - | 4.99 | 664,773 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,294 |
| Northernmost Countries | 0 | - | 4.99 | 329,294 |
| Countries of South America | 0 | - | 5.00 | 802,306 |
| Countries of Oceania | 0 | - | 5.00 | 904,123 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,592,735 |
| Top World Languages | 0 | - | 4.92 | 716,027 |
| Analogies of Countries #1 | 0 | - | 4.88 | 62,269 |
| Pacific Ocean General Knowledge | 0 | - | 4.59 | 26,828 |
| Largest Deserts in the World | 0 | - | 4.03 | 41,446 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,257 |
| World Map Divided into Regions | 0 | - | 4.18 | 35,926 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,604 |
| Countries with Megacities | 0 | - | 4.99 | 199,794 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,394 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,992 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 96,993 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,961 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,563 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,053 |
| Northernmost Capital Cities | 0 | - | 4.98 | 95,062 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,299 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,040 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 92,113 |
| Same Letter Country and Capital | 0 | - | 4.99 | 128,802 |
| Countries by Capital City | 0 | - | 4.99 | 50,460 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 66,559 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 105,666 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 73,717 |
| Moved Capital Cities | 0 | - | 4.96 | 67,483 |
| Countries by Official Language | 0 | - | 4.96 | 174,150 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,230 |
| Countries in their Native Language | 0 | - | 4.98 | 179,383 |
| Independence from Whom | 0 | - | 4.99 | 187,555 |
| Subdivisions by Country | 0 | - | 4.82 | 46,690 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,582 |
| Megadiverse Countries | 0 | - | 4.96 | 126,161 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,487 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,129 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,633 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,347 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,503 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,807 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,676 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,389 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,673 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,472 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,945 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,581 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,145 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,016 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,640 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 84,372 |
| World Map Quiz | 0 | - | 4.91 | 50,436 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,158 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,399 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,888 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,116 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,735 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,038 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,417 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,484 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,543 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,043 |
| Widest Countries East to West | 0 | - | 4.93 | 120,001 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,992 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,812 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,988 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,136 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,000 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,737 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,626 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,248 |
| Countries with Double Letters | 0 | - | 4.96 | 69,969 |
| Countries that End in N | 0 | - | 4.94 | 134,193 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,544 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 188,922 |
| Countries with W | 0 | - | 4.96 | 124,177 |
| Countries with Z | 0 | - | 4.98 | 246,221 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,381 |
| Countries That End in U | 0 | - | 4.95 | 108,314 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,800 |
| Countries that End in O | 0 | - | 4.92 | 147,539 |
| Countries that End in R | 0 | - | 4.84 | 96,844 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,652 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,699 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,911 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,114 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,052 |
| Countries That End in Y | 0 | - | 4.90 | 161,996 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,069 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,545 |
| Countries that End in I | 0 | - | 4.92 | 114,850 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,606 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,955 |
| Countries That End in NIA | 0 | - | 4.93 | 101,361 |
| Countries That End in BIA | 0 | - | 4.91 | 126,735 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,271 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,389 |
| Countries That End in RIA | 0 | - | 4.90 | 101,467 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,107 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 202,942 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,737 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,750 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,388 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,215 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,449 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,282 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,630 |
| Countries that End in L | 0 | - | 4.95 | 135,253 |
| "Land" Countries | 0 | - | 4.98 | 291,246 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,425 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,300 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,850 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,655 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,165 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,766 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 168,822 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,206 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,026 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,210 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,615 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,270 |
