| Metals of Antiquity | 0 | - | 4.94 | 92,988 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,560 |
| Elements Named for Countries | 0 | - | 4.52 | 24,447 |
| Countries with Glaciers | 0 | - | 4.97 | 104,733 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,710 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,296 |
| Boundary Waters | 0 | - | 4.92 | 88,097 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,863 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,413 |
| The Only African Country ... | 0 | - | 4.98 | 128,450 |
| The Only American Country ... | 0 | - | 4.92 | 120,879 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,821 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,378 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,737 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,826 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,249 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 86,227 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,694 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,997,403 |
| Landlocked Countries | 0 | - | 4.99 | 414,555 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,340 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,947 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,410 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,062 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,728 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,233 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,982 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,210 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,095 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,983 |
| Himalayan Countries | 0 | - | 4.95 | 135,690 |
| Andean Countries | 0 | - | 4.94 | 83,021 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,371 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,430 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,068 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,733 |
| Danube Countries | 0 | - | 4.97 | 71,177 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,893 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,634 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,696 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,600 |
| European Landlocked Countries | 0 | - | 4.99 | 145,876 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,357 |
| Countries with the Most Species | 0 | - | 4.99 | 95,298 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,523 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,235 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,404 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,013 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,652 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,022 |
| Countries in the Alps | 0 | - | 4.86 | 116,976 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,681 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,445 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,105 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,507 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,294 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,087 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,689 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,836 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,593 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,150 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,230 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,097 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,534 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,827 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,827 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,279 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,735 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,309 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,934 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,823 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,985 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,682 |
| Largest Countries By Category | 0 | - | 4.97 | 156,906 |
| Countries by Countries | 0 | - | 4.96 | 62,357 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,548 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,997 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,852 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,724,661 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,807 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,519 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,624 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,265 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,694 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,698 |
| Longest International Borders | 0 | - | 4.99 | 263,970 |
| Countries with Three Borders | 0 | - | 4.96 | 36,249 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,652 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,746 |
| Demonym of Every Country | 0 | - | 4.91 | 58,729 |
| Elements by Picture | 0 | - | 4.28 | 69,619 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,121 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,247 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,472 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,312 |
| Island Countries | 0 | - | 4.99 | 707,988 |
| Least-Forested Countries | 0 | - | 4.53 | 64,941 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,771 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,737 |
| Northernmost Countries | 0 | - | 4.99 | 358,244 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,484 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,148 |
| Countries of South America | 0 | - | 5.00 | 916,474 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,579 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,683 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,210 |
| "Land" Countries | 0 | - | 4.98 | 333,910 |
| Top World Languages | 0 | - | 4.92 | 814,394 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,084 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,984 |
| Europe Map Quiz | 0 | - | 5.00 | 4,735,870 |
| All Country Flags of the World | 0 | - | 5.00 | 3,611,227 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,610 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,196 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,224 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,626 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,690 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,040 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,689 |
| Countries with Megacities | 0 | - | 4.99 | 247,729 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,541 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,231 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,940 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,171 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,691 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,006 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,199 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,813 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,768 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,904 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,726 |
| Countries by Capital City | 0 | - | 5.00 | 66,924 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,479 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,024 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,844 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,502 |
| Moved Capital Cities | 0 | - | 4.96 | 73,702 |
| Countries by Official Language | 0 | - | 4.95 | 192,967 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,421 |
| Countries in their Native Language | 0 | - | 4.99 | 196,827 |
| Independence from Whom | 0 | - | 4.99 | 209,937 |
| Subdivisions by Country | 0 | - | 4.86 | 50,112 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,926 |
| Megadiverse Countries | 0 | - | 4.97 | 133,972 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,998 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,967 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,479 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,885 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,782 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,067 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,209 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,228 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,260 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,767 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,761 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,463 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,565 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,551 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,743 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,073 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,867 |
| World Map Quiz | 0 | - | 4.81 | 63,678 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,220 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,433 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,466 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,599 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,373 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,114 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,071 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,010 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,211 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,406 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,017 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,453 |
| Widest Countries East to West | 0 | - | 4.92 | 128,954 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,258 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,361 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,615 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,778 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,721 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,150 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 73,926 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,704 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,624 |
| Countries with Double Letters | 0 | - | 4.96 | 93,572 |
| Countries that End in N | 0 | - | 4.94 | 157,054 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,889 |
| Countries with Six Letters | 0 | - | 4.93 | 210,553 |
| Countries with W | 0 | - | 4.97 | 158,349 |
| Countries with Z | 0 | - | 4.98 | 288,083 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,672 |
| Countries That End in U | 0 | - | 4.95 | 119,585 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,772 |
| Countries that End in O | 0 | - | 4.92 | 158,615 |
| Countries that End in R | 0 | - | 4.87 | 118,336 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,904 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,282 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,464 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,589 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,128 |
