| Metals of Antiquity | 0 | - | 4.95 | 93,424 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,137 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,711 |
| Countries with the Most Borders | 0 | - | 4.97 | 388,378 |
| Elements Named for Countries | 0 | - | 4.53 | 24,694 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,595 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,413 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,864 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,123 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,296 |
| Countries with Glaciers | 0 | - | 4.97 | 105,405 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,538 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,643 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,830 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 180,475 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,240 |
| Boundary Waters | 0 | - | 4.92 | 88,455 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,156 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,056 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,401 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,558 |
| European Countries with One Border | 0 | - | 4.97 | 182,750 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,551 |
| Random Countries by Borders | 0 | - | 4.99 | 82,421 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,467 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,928 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,438,684 |
| Landlocked Countries | 0 | - | 4.99 | 420,208 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,442 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,281 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,294 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,152 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 89,023 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,059 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 383,320 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,403 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,580 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,804 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,916 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,140 |
| World Capitals Quiz | 0 | - | 5.00 | 5,072,062 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,581 |
| Himalayan Countries | 0 | - | 4.95 | 137,989 |
| Andean Countries | 0 | - | 4.95 | 84,207 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,428 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,166 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,066 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,510 |
| Danube Countries | 0 | - | 4.97 | 71,792 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,734 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,185 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,913 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,193 |
| European Landlocked Countries | 0 | - | 4.99 | 146,933 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,324 |
| Countries with the Most Species | 0 | - | 4.99 | 103,064 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,495 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,486 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,644 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,420 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,099 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,486 |
| Countries in the Alps | 0 | - | 4.87 | 117,920 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 98,703 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,645 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,528 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,422 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,266 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,820 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,436 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,312 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,058 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,679 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,553 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,405 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,044 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,325 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,337 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,474 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,149 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,667 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,766 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,034 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,600 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,080 |
| Largest Countries By Category | 0 | - | 4.97 | 157,877 |
| Countries by Countries | 0 | - | 4.97 | 62,984 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,428 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,201 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,503 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,477 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,765,916 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,209 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,305 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,153 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,264 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,330 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,521 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,337 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,856 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,528 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,637 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,378 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,762 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,131 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,543 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,790 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,338 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,437 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,516 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,165 |
| Longest International Borders | 0 | - | 4.99 | 264,900 |
| Countries with Three Borders | 0 | - | 4.96 | 36,521 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,003 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,117 |
| Demonym of Every Country | 0 | - | 4.91 | 59,818 |
| Elements by Picture | 0 | - | 4.27 | 69,940 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,067 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,585,903 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,970 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,088 |
| Island Countries | 0 | - | 4.99 | 710,284 |
| Countries Richer Than Their Neighbors | 0 | - | 4.46 | 72,644 |
| Least-Forested Countries | 0 | - | 4.53 | 65,197 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,071 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,067 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,573 |
| Northernmost Countries | 0 | - | 4.99 | 361,110 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,621 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,519 |
| Countries of South America | 0 | - | 5.00 | 924,743 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,621 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,087 |
| "Land" Countries | 0 | - | 4.98 | 336,127 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 355,822 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 415,053 |
| Top World Languages | 0 | - | 4.92 | 821,925 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,145 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,983 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,851 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,172 |
| All Country Flags of the World | 0 | - | 5.00 | 3,662,177 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,257 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,386 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,308 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,329 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,324 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,231 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,396 |
| Countries with Megacities | 0 | - | 4.99 | 263,116 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,238 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,204 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,528 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,241 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,513 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,082 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,217 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,379 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,463 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,194 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,945 |
| Countries by Capital City | 0 | - | 5.00 | 68,221 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,144 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,625 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,312 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,170 |
| Moved Capital Cities | 0 | - | 4.96 | 74,187 |
| Countries by Official Language | 0 | - | 4.95 | 194,889 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,877 |
| Countries in their Native Language | 0 | - | 4.99 | 198,420 |
| Independence from Whom | 0 | - | 4.99 | 211,662 |
| Subdivisions by Country | 0 | - | 4.86 | 50,346 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,941 |
| Megadiverse Countries | 0 | - | 4.96 | 134,861 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,754 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,243 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,834 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,056 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,876 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,462 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,185 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,920 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,553 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,032 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,309 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,785 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,077 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,854 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,242 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,406 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,588 |
| World Map Quiz | 0 | - | 4.81 | 64,819 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,276 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,171 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,640 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,744 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,069 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,797 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,708 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,682 |
