| Countries with the Most Forest | 0 | - | 4.87 | 146,852 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,603 |
| Countries with Glaciers | 0 | - | 4.97 | 104,834 |
| Least-Forested Countries | 0 | - | 4.53 | 65,023 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,857 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,517 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,101 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,392 |
| Boundary Waters | 0 | - | 4.92 | 88,208 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,949 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,626 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,773 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,142,714 |
| Landlocked Countries | 0 | - | 4.99 | 416,392 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,378 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,060 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,352 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,252 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,506 |
| World Capitals Quiz | 0 | - | 5.00 | 5,048,771 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,807 |
| Himalayan Countries | 0 | - | 4.95 | 136,390 |
| Andean Countries | 0 | - | 4.95 | 83,427 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,693 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,916 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,376 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,981 |
| Danube Countries | 0 | - | 4.97 | 71,372 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,169 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,828 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,102 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,053 |
| European Landlocked Countries | 0 | - | 4.99 | 146,100 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,716 |
| Countries with the Most Species | 0 | - | 4.99 | 100,773 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,856 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,315 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,493 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,134 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,791 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,163 |
| Countries in the Alps | 0 | - | 4.86 | 117,296 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,875 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,828 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,235 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,715 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,787 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,228 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,957 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,975 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,783 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,311 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,341 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,194 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,700 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,972 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,988 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,660 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,873 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,407 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,207 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,849 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,500 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,799 |
| Largest Countries By Category | 0 | - | 4.97 | 157,218 |
| Countries by Countries | 0 | - | 4.96 | 62,566 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,846 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,070 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,060 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,738,676 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,005 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,613 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,892 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,320 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,163 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,831 |
| Longest International Borders | 0 | - | 4.99 | 264,258 |
| Countries with Three Borders | 0 | - | 4.96 | 36,337 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,766 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,855 |
| Demonym of Every Country | 0 | - | 4.91 | 58,890 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,609 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,247 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,719 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,575 |
| Island Countries | 0 | - | 4.99 | 708,732 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,012 |
| Northernmost Countries | 0 | - | 4.99 | 359,233 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,529 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,268 |
| Countries of South America | 0 | - | 5.00 | 919,317 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,199 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,801 |
| "Land" Countries | 0 | - | 4.98 | 334,467 |
| Top World Languages | 0 | - | 4.92 | 816,935 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,809 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,602 |
| All Country Flags of the World | 0 | - | 5.00 | 3,627,485 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 118,838 |
| Elements Named for Countries | 0 | - | 4.52 | 24,536 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,258 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,243 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,834 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,525 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,745 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,200 |
| Countries with Megacities | 0 | - | 4.99 | 248,788 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,052 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,510 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,427 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,458 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,705 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,410 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,532 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,025 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,018 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,257 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,109 |
| Countries by Capital City | 0 | - | 5.00 | 67,408 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,704 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,224 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,622 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,663 |
| Moved Capital Cities | 0 | - | 4.96 | 73,857 |
| Countries by Official Language | 0 | - | 4.95 | 193,932 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,428 |
| Countries in their Native Language | 0 | - | 4.99 | 197,557 |
| Independence from Whom | 0 | - | 4.99 | 210,636 |
| Subdivisions by Country | 0 | - | 4.86 | 50,187 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,274 |
| Megadiverse Countries | 0 | - | 4.96 | 134,519 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,760 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,070 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,615 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,942 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,415 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,198 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,530 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,524 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,355 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,802 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,122 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,571 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,671 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,632 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,837 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,185 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,460 |
| World Map Quiz | 0 | - | 4.81 | 64,024 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,667 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,013 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,635 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,369 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,624 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,231 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,428 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,601 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,132 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,621 |
| Widest Countries East to West | 0 | - | 4.92 | 129,120 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,320 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,616 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,902 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,936 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,956 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,333 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,046 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,734 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,663 |
| Countries with Double Letters | 0 | - | 4.96 | 93,974 |
| Countries that End in N | 0 | - | 4.94 | 162,782 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,398 |
| Countries with Six Letters | 0 | - | 4.93 | 210,991 |
| Countries with W | 0 | - | 4.97 | 158,673 |
| Countries with Z | 0 | - | 4.98 | 288,592 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,948 |
| Countries That End in U | 0 | - | 4.95 | 119,815 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,080 |
| Countries that End in O | 0 | - | 4.92 | 158,790 |
| Countries that End in R | 0 | - | 4.87 | 118,466 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,002 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,652 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,690 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,768 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,339 |
| Countries That End in Y | 0 | - | 4.90 | 185,377 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,782 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,040 |
| Countries that End in I | 0 | - | 4.94 | 134,633 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,650 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,382 |
| Countries That End in NIA | 0 | - | 4.92 | 109,265 |
| Countries That End in BIA | 0 | - | 4.93 | 148,507 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,387 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,739 |
| Countries That End in RIA | 0 | - | 4.93 | 126,307 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,293 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,007 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,817 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,164 |
