| Countries with the Most Forest | 0 | - | 4.88 | 148,331 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 110,059 |
| Countries with Glaciers | 0 | - | 4.97 | 105,919 |
| Least-Forested Countries | 0 | - | 4.53 | 65,485 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,418 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,829 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,205 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 65,075 |
| Boundary Waters | 0 | - | 4.92 | 88,872 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,490 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,902 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,280 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,006,719 |
| Landlocked Countries | 0 | - | 4.99 | 427,705 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,561 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,648 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,019 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,234 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,256 |
| World Capitals Quiz | 0 | - | 5.00 | 5,117,061 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,133 |
| Himalayan Countries | 0 | - | 4.93 | 141,019 |
| Andean Countries | 0 | - | 4.94 | 85,898 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,010 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,629 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,552 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,763 |
| Danube Countries | 0 | - | 4.97 | 72,607 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,872 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,021 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,530 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,014 |
| European Landlocked Countries | 0 | - | 4.99 | 147,820 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,606 |
| Countries with the Most Species | 0 | - | 4.99 | 103,672 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,712 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,833 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,975 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,961 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,709 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,176 |
| Countries in the Alps | 0 | - | 4.87 | 119,050 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,124 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,257 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,091 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,220 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,192 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,425 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,644 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,034 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,539 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,351 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,977 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,851 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,707 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,962 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,064 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,258 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,768 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,778 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,904 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,565 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,633 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,642 |
| Largest Countries By Category | 0 | - | 4.97 | 159,192 |
| Countries by Countries | 0 | - | 4.97 | 63,854 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,521 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,460 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,291 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,597 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,630 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,034 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,925 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,670 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,540 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,695 |
| Longest International Borders | 0 | - | 4.99 | 266,089 |
| Countries with Three Borders | 0 | - | 4.96 | 36,858 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,448 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,595 |
| Demonym of Every Country | 0 | - | 4.90 | 61,693 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,046 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,445 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,181 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,639 |
| Island Countries | 0 | - | 4.99 | 713,198 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,725 |
| Northernmost Countries | 0 | - | 4.99 | 364,838 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,768 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,963 |
| Countries of South America | 0 | - | 5.00 | 934,923 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,270 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,658 |
| "Land" Countries | 0 | - | 4.98 | 339,172 |
| Top World Languages | 0 | - | 4.92 | 832,163 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,478 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,118 |
| All Country Flags of the World | 0 | - | 5.00 | 3,729,028 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 120,078 |
| Elements Named for Countries | 0 | - | 4.52 | 25,056 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,794 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,418 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,194 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,831 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,203 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,654 |
| Countries with Megacities | 0 | - | 4.99 | 268,176 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,296 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,411 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,634 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,523 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,536 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,587 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,641 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,134 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,410 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,533 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,499 |
| Countries by Capital City | 0 | - | 5.00 | 69,721 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,243 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,406 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,645 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 85,015 |
| Moved Capital Cities | 0 | - | 4.96 | 74,764 |
| Countries by Official Language | 0 | - | 4.95 | 196,329 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,089 |
| Countries in their Native Language | 0 | - | 4.99 | 200,041 |
| Independence from Whom | 0 | - | 4.99 | 213,538 |
| Subdivisions by Country | 0 | - | 4.87 | 50,682 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,753 |
| Megadiverse Countries | 0 | - | 4.96 | 149,774 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,218 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,595 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,847 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,272 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,550 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,961 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,376 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,656 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,211 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,299 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,898 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,517 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,531 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,250 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,671 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 72,012 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,891 |
| World Map Quiz | 0 | - | 4.81 | 65,984 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,863 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,632 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,290 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,764 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,067 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,616 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,734 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,904 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,786 |
| Tallest Countries North to South | 0 | - | 4.85 | 131,015 |
| Widest Countries East to West | 0 | - | 4.92 | 130,907 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,468 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,587 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,197 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,494 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,650 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,547 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 37,985 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,934 |
| Countries with Double Letters | 0 | - | 4.96 | 97,780 |
| Countries that End in N | 0 | - | 4.95 | 172,780 |
| Countries with Five Letters | 0 | - | 4.96 | 284,838 |
| Countries with Six Letters | 0 | - | 4.94 | 215,113 |
| Countries with W | 0 | - | 4.96 | 161,424 |
| Countries with Z | 0 | - | 4.98 | 293,170 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,795 |
| Countries That End in U | 0 | - | 4.95 | 121,456 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,548 |
| Countries that End in O | 0 | - | 4.92 | 160,423 |
| Countries that End in R | 0 | - | 4.87 | 119,315 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,087 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,263 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,634 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,300 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,974 |
| Countries That End in Y | 0 | - | 4.91 | 186,205 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,517 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,482 |
| Countries that End in I | 0 | - | 4.94 | 135,461 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,450 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,181 |
| Countries That End in NIA | 0 | - | 4.92 | 110,194 |
| Countries That End in BIA | 0 | - | 4.93 | 149,788 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 168,004 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,950 |
| Countries That End in RIA | 0 | - | 4.93 | 127,196 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,591 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,066 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,466 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 126,925 |
