| Metals of Antiquity | 0 | - | 4.95 | 93,929 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 110,013 |
| Elements Named for Countries | 0 | - | 4.52 | 24,967 |
| Countries with Glaciers | 0 | - | 4.97 | 105,811 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,990 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,969 |
| Boundary Waters | 0 | - | 4.92 | 88,770 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,420 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,712 |
| The Only African Country ... | 0 | - | 4.99 | 129,668 |
| The Only American Country ... | 0 | - | 4.92 | 122,222 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,381 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,750 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,371 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,677 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,335 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,918 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,213 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,887,100 |
| Landlocked Countries | 0 | - | 4.99 | 425,981 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,535 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,557 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,310 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,572 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 57,153 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,932 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,000 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,017 |
| World Capitals Quiz | 0 | - | 5.00 | 5,106,686 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,337 |
| Himalayan Countries | 0 | - | 4.93 | 140,298 |
| Andean Countries | 0 | - | 4.94 | 85,494 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,639 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,039 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,211 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,456 |
| Danube Countries | 0 | - | 4.97 | 72,411 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,608 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,852 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,151 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,635 |
| European Landlocked Countries | 0 | - | 4.99 | 147,618 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,319 |
| Countries with the Most Species | 0 | - | 4.99 | 103,573 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,429 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,781 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,889 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,848 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,587 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,026 |
| Countries in the Alps | 0 | - | 4.87 | 118,791 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,662 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,890 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,971 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,036 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,972 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,272 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,419 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,873 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,433 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,189 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,889 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,752 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,567 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,810 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,901 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,875 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,625 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 73,486 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,682 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,764 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,183 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,515 |
| Largest Countries By Category | 0 | - | 4.97 | 158,881 |
| Countries by Countries | 0 | - | 4.96 | 63,653 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,281 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,403 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,674 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,113 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,066 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,461 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,988 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,807 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,618 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,124 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,578 |
| Longest International Borders | 0 | - | 4.99 | 265,825 |
| Countries with Three Borders | 0 | - | 4.96 | 36,778 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,357 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,497 |
| Demonym of Every Country | 0 | - | 4.90 | 61,491 |
| Elements by Picture | 0 | - | 4.27 | 70,326 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,505 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,753 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,717 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,752 |
| Island Countries | 0 | - | 4.99 | 712,603 |
| Least-Forested Countries | 0 | - | 4.53 | 65,421 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,343 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,862 |
| Northernmost Countries | 0 | - | 4.99 | 364,065 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,732 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,859 |
| Countries of South America | 0 | - | 5.00 | 932,853 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,550 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,624 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,737 |
| "Land" Countries | 0 | - | 4.98 | 338,415 |
| Top World Languages | 0 | - | 4.92 | 829,897 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,194 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,968 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,564 |
| All Country Flags of the World | 0 | - | 5.00 | 3,714,716 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,919 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,734 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,395 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,996 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,287 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,537 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,190 |
| Countries with Megacities | 0 | - | 4.99 | 267,176 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,875 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,151 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,187 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,256 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,677 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,319 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,369 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,980 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,216 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,239 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,159 |
| Countries by Capital City | 0 | - | 5.00 | 69,409 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,862 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,240 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,912 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,820 |
| Moved Capital Cities | 0 | - | 4.96 | 74,657 |
| Countries by Official Language | 0 | - | 4.95 | 196,017 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,663 |
| Countries in their Native Language | 0 | - | 4.99 | 199,752 |
| Independence from Whom | 0 | - | 4.99 | 213,092 |
| Subdivisions by Country | 0 | - | 4.87 | 50,620 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,459 |
| Megadiverse Countries | 0 | - | 4.96 | 135,285 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,960 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,546 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,691 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,232 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,248 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,859 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,126 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,572 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,067 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,259 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,557 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,384 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,449 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,152 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,588 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,874 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,391 |
| World Map Quiz | 0 | - | 4.81 | 65,748 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,317 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,719 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,787 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,279 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,098 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,571 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,609 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,445 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,548 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,743 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,701 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,745 |
| Widest Countries East to West | 0 | - | 4.92 | 130,468 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,601 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,273 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,522 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,070 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,989 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,495 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,505 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 37,948 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,893 |
| Countries with Double Letters | 0 | - | 4.96 | 97,103 |
| Countries that End in N | 0 | - | 4.95 | 171,975 |
| Countries with Five Letters | 0 | - | 4.96 | 283,808 |
| Countries with Six Letters | 0 | - | 4.94 | 214,508 |
| Countries with W | 0 | - | 4.96 | 160,971 |
| Countries with Z | 0 | - | 4.98 | 292,485 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,301 |
| Countries That End in U | 0 | - | 4.95 | 121,199 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,128 |
| Countries that End in O | 0 | - | 4.92 | 160,225 |
| Countries that End in R | 0 | - | 4.87 | 119,190 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,947 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,871 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,167 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,843 |
