| Metals of Antiquity | 0 | - | 4.94 | 92,991 |
| 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 | 104,734 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,712 |
| 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 | 34,864 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,414 |
| The Only African Country ... | 0 | - | 4.98 | 128,451 |
| The Only American Country ... | 0 | - | 4.92 | 120,881 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,821 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,380 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,739 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,828 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,251 |
| 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 | 46,998,577 |
| Landlocked Countries | 0 | - | 4.99 | 414,573 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,341 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,949 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,410 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,063 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,729 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,233 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,983 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,210 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,209 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,990 |
| Himalayan Countries | 0 | - | 4.95 | 135,695 |
| Andean Countries | 0 | - | 4.94 | 83,026 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,373 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,434 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,075 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,734 |
| Danube Countries | 0 | - | 4.97 | 71,179 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,897 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,637 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,702 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,604 |
| European Landlocked Countries | 0 | - | 4.99 | 145,876 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,362 |
| Countries with the Most Species | 0 | - | 4.99 | 95,299 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,529 |
| 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 | 59,015 |
| 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 | 116,982 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,682 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,452 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,106 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,508 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,297 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,091 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,693 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,837 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,594 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,151 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,230 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,098 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,536 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,827 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,828 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,285 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,735 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,310 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,938 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,827 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,990 |
| 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 | 62,359 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,549 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,999 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,855 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,724,785 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,808 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,520 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,625 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,267 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,697 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,699 |
| Longest International Borders | 0 | - | 4.99 | 263,972 |
| Countries with Three Borders | 0 | - | 4.96 | 36,251 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,652 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,747 |
| Demonym of Every Country | 0 | - | 4.91 | 58,730 |
| Elements by Picture | 0 | - | 4.28 | 69,619 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,159 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,299 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,481 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,324 |
| Island Countries | 0 | - | 4.99 | 707,994 |
| Least-Forested Countries | 0 | - | 4.53 | 64,942 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,773 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,763 |
| Northernmost Countries | 0 | - | 4.99 | 358,254 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,484 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,149 |
| Countries of South America | 0 | - | 5.00 | 916,556 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,600 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,724 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,210 |
| "Land" Countries | 0 | - | 4.98 | 333,912 |
| Top World Languages | 0 | - | 4.92 | 814,431 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,084 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,028 |
| Europe Map Quiz | 0 | - | 5.00 | 4,735,924 |
| All Country Flags of the World | 0 | - | 5.00 | 3,611,365 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,613 |
| 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 | 1,436,710 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,048 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,696 |
| Countries with Megacities | 0 | - | 4.99 | 247,739 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,545 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,235 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,948 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,175 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,718 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,010 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,205 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,819 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,781 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,909 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,738 |
| Countries by Capital City | 0 | - | 5.00 | 66,933 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,482 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,025 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,851 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,504 |
| Moved Capital Cities | 0 | - | 4.96 | 73,705 |
| Countries by Official Language | 0 | - | 4.95 | 192,973 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,425 |
| Countries in their Native Language | 0 | - | 4.99 | 196,835 |
| Independence from Whom | 0 | - | 4.99 | 209,945 |
| Subdivisions by Country | 0 | - | 4.86 | 50,112 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,929 |
| Megadiverse Countries | 0 | - | 4.97 | 133,975 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,001 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,967 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,481 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,886 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,783 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,068 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,211 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,229 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,262 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,767 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,762 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,464 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,566 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,554 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,745 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,076 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,874 |
| World Map Quiz | 0 | - | 4.81 | 63,680 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,231 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,437 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,466 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,602 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,373 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,116 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,093 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,015 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,211 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,410 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,019 |
| 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 | 71,259 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,364 |
| 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 | 93,780 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,721 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,153 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 74,034 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,705 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,625 |
| Countries with Double Letters | 0 | - | 4.96 | 93,576 |
| Countries that End in N | 0 | - | 4.94 | 157,056 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,891 |
| Countries with Six Letters | 0 | - | 4.93 | 210,556 |
| Countries with W | 0 | - | 4.97 | 158,352 |
| Countries with Z | 0 | - | 4.98 | 288,084 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,676 |
| Countries That End in U | 0 | - | 4.95 | 119,586 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,777 |
| Countries that End in O | 0 | - | 4.92 | 158,615 |
| Countries that End in R | 0 | - | 4.87 | 118,337 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,907 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,288 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,466 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,590 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,129 |
