| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,623 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 130,354 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,635 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,393 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,452 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,659 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,681 |
| Countries with Glaciers | 0 | - | 4.97 | 104,994 |
| Countries by Emojis | 0 | - | 4.99 | 238,449 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,370 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,521 |
| Top 10 Countries in Beer Production per Capita | 0 | - | 4.67 | 64,751 |
| Countries by Alcohol Consumption | 0 | - | 4.43 | 205,182 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,992 |
| Most Forested European Countries | 0 | - | 4.80 | 75,213 |
| 20 Random Country Flags | 0 | - | 4.99 | 609,896 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,853 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,416,641 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,768 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,370 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,978 |
| Countries as U.S. First Names | 0 | - | 4.31 | 77,720 |
| Strongest Nation Brands | 0 | - | 4.50 | 37,520 |
| Drinks by Country | 0 | - | 4.30 | 59,301 |
| Beers by Country | 0 | - | 4.45 | 97,127 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,930 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,349 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,727 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,701 |
| Name a Valid African Country | 0 | - | 4.98 | 153,696 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,251 |
| Boundary Waters | 0 | - | 4.92 | 88,350 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,055 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,863 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,091 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,298 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,611 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,881 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,432 |
| Which City in Europe? | 0 | - | 4.83 | 107,124 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,292,990 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,414 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,185 |
| Least Forested European Countries | 0 | - | 4.25 | 53,944 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,559 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,702 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,208 |
| Top 15 Countries in Wine Production per Capita | 0 | - | 4.74 | 64,713 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,467 |
| Countries that Beat China | 0 | - | 4.86 | 115,441 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,428 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,570 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,762 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,657 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,257 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,061 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,914 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,700 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,313 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,375 |
| Landlocked Countries | 0 | - | 4.99 | 418,285 |
| Least-Forested Countries | 0 | - | 4.53 | 65,124 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 81,961 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,571 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,384 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,134 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,714,915 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 505,206 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,349 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,124 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,475 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,568 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,574 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,809 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,404 |
| Random European City to Country | 0 | - | 4.69 | 117,418 |
| Random Asian City to Country | 0 | - | 4.56 | 44,456 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,712 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,788 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,054 |
| Which City in Canada? | 0 | - | 4.82 | 56,931 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,437 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,790 |
| Island Countries | 0 | - | 4.99 | 709,503 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,656 |
| Himalayan Countries | 0 | - | 4.94 | 137,140 |
| Andean Countries | 0 | - | 4.95 | 83,780 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,032 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,411 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,705 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,259 |
| Danube Countries | 0 | - | 4.97 | 71,586 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,455 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,990 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,529 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,589 |
| European Landlocked Countries | 0 | - | 4.99 | 146,699 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,027 |
| Countries with the Most Species | 0 | - | 4.99 | 102,825 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,171 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,402 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,559 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,263 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,935 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,313 |
| Countries in the Alps | 0 | - | 4.87 | 117,592 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,071 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,258 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,371 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,917 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,025 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,401 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,198 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,134 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,930 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,497 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,446 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,304 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,877 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,142 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,163 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,050 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,018 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,538 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,434 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,038 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,079 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,949 |
| Largest Countries By Category | 0 | - | 4.97 | 157,540 |
| Countries by Countries | 0 | - | 4.96 | 62,782 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,392 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,126 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,143 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,577 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,457 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,309 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,588 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,264 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,398 |
| Northernmost Countries | 0 | - | 4.99 | 360,199 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,774 |
| Countries of South America | 0 | - | 5.00 | 922,156 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,027 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,641 |
| "Land" Countries | 0 | - | 4.98 | 335,660 |
| Europe Map Quiz | 0 | - | 5.00 | 4,753,746 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,317 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,715 |
| All Country Flags of the World | 0 | - | 5.00 | 3,644,862 |
| Top World Languages | 0 | - | 4.92 | 819,557 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,182 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,377 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,938 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,031 |
| Longest International Borders | 0 | - | 4.99 | 264,563 |
| Countries with Three Borders | 0 | - | 4.96 | 36,426 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,880 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,975 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,045 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,532,652 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,247 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,775 |
| Demonym of Every Country | 0 | - | 4.91 | 59,101 |
| Elements Named for Countries | 0 | - | 4.52 | 24,614 |
| Brand Logos Quiz #2 | 0 | - | 4.70 | 1,686,987 |
| Brand Logos Quiz #4 | 0 | - | 4.45 | 1,010,693 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,324 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,096 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,466 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,507 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,796 |
| Countries with Megacities | 0 | - | 4.99 | 251,166 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,652 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,863 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,950 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,846 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,080 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,291 |
| World City Nicknames Quiz | 0 | - | 4.16 | 35,557 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,774 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,872 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,203 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,224 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,872 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,503 |
| Countries by Capital City | 0 | - | 5.00 | 67,833 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,920 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,420 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,465 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,909 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,054 |
| Moved Capital Cities | 0 | - | 4.96 | 74,005 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,531 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,809 |
| Countries by Official Language | 0 | - | 4.95 | 194,528 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,377 |
| Countries in their Native Language | 0 | - | 4.99 | 198,088 |
| Independence from Whom | 0 | - | 4.99 | 211,191 |
| Subdivisions by Country | 0 | - | 4.86 | 50,262 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,610 |
