| Metals of Antiquity | 0 | - | 4.94 | 92,992 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,561 |
| Elements Named for Countries | 0 | - | 4.52 | 24,448 |
| Countries with Glaciers | 0 | - | 4.97 | 104,736 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,714 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,297 |
| Boundary Waters | 0 | - | 4.92 | 88,097 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,865 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,415 |
| The Only African Country ... | 0 | - | 4.98 | 128,454 |
| The Only American Country ... | 0 | - | 4.92 | 120,882 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,821 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,384 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,740 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,830 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,252 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 86,228 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,695 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,000,696 |
| Landlocked Countries | 0 | - | 4.99 | 414,600 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,341 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,950 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,412 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,063 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,730 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,233 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,988 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,212 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,380 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,999 |
| Himalayan Countries | 0 | - | 4.95 | 135,708 |
| Andean Countries | 0 | - | 4.94 | 83,028 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,375 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,440 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,078 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,737 |
| Danube Countries | 0 | - | 4.97 | 71,184 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,901 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,640 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,703 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,608 |
| European Landlocked Countries | 0 | - | 4.99 | 145,879 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,367 |
| Countries with the Most Species | 0 | - | 4.99 | 95,299 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,534 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,238 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,406 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,018 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,654 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,023 |
| Countries in the Alps | 0 | - | 4.86 | 116,986 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,683 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,461 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,107 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,513 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,298 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,094 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,699 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,842 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,596 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,153 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,232 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,102 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,539 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,829 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,831 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,294 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,738 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,312 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,939 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,844 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,999 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,683 |
| Largest Countries By Category | 0 | - | 4.97 | 156,911 |
| Countries by Countries | 0 | - | 4.96 | 62,364 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,551 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,000 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,860 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,724,951 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,813 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,521 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,626 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,269 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,703 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,700 |
| Longest International Borders | 0 | - | 4.99 | 263,977 |
| 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 | 47,749 |
| Demonym of Every Country | 0 | - | 4.91 | 58,736 |
| Elements by Picture | 0 | - | 4.28 | 69,620 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,191 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,375 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,487 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,344 |
| Island Countries | 0 | - | 4.99 | 708,009 |
| Least-Forested Countries | 0 | - | 4.53 | 64,944 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,774 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,807 |
| Northernmost Countries | 0 | - | 4.99 | 358,272 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,486 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,149 |
| Countries of South America | 0 | - | 5.00 | 916,617 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,636 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,826 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,210 |
| "Land" Countries | 0 | - | 4.98 | 333,916 |
| Top World Languages | 0 | - | 4.92 | 814,463 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,084 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,099 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,051 |
| All Country Flags of the World | 0 | - | 5.00 | 3,611,559 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,616 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,197 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,224 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,627 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,754 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,057 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,700 |
| Countries with Megacities | 0 | - | 4.99 | 247,753 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,553 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,237 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,953 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,183 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,753 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,012 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,220 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,835 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,790 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,921 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,746 |
| Countries by Capital City | 0 | - | 5.00 | 66,966 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,490 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,031 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,864 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,509 |
| Moved Capital Cities | 0 | - | 4.96 | 73,709 |
| Countries by Official Language | 0 | - | 4.95 | 192,979 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,432 |
| Countries in their Native Language | 0 | - | 4.99 | 196,839 |
| Independence from Whom | 0 | - | 4.99 | 209,951 |
| Subdivisions by Country | 0 | - | 4.86 | 50,115 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,932 |
| Megadiverse Countries | 0 | - | 4.97 | 133,980 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,008 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,967 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,482 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,886 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,786 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,070 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,215 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,230 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,264 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,767 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,766 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,465 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,567 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,556 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,748 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,077 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,888 |
| World Map Quiz | 0 | - | 4.81 | 63,682 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,249 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,439 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,467 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,605 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,380 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,120 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,097 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,021 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,212 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,416 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,019 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,456 |
| Widest Countries East to West | 0 | - | 4.92 | 128,954 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,260 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,365 |
| 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 | 93,783 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,725 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,153 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 74,181 |
| 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 | 93,580 |
| Countries that End in N | 0 | - | 4.94 | 157,059 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,899 |
| Countries with Six Letters | 0 | - | 4.93 | 210,562 |
| Countries with W | 0 | - | 4.97 | 158,354 |
| Countries with Z | 0 | - | 4.98 | 288,090 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,677 |
| Countries That End in U | 0 | - | 4.95 | 119,588 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,781 |
| Countries that End in O | 0 | - | 4.92 | 158,616 |
| 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 | 207,296 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,468 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,591 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,132 |
