| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,729 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 60,189 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,655 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,496 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,646 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.98 | 110,032 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,612 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,976 |
| Countries with Glaciers | 0 | - | 4.97 | 105,829 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,761 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,079 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,192 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,986 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,679 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,231 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,385 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,488 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,481 |
| Orthodox Countries | 0 | - | 4.92 | 132,847 |
| Battle to Country | 0 | - | 4.91 | 54,005 |
| Monarchies of Europe | 0 | - | 4.90 | 98,916 |
| Monarchies of Asia | 0 | - | 4.97 | 71,528 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,308 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,173 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,590 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,643 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,888 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,989 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,014 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,409 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,473 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,775 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,831 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,305 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,098 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,424 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,588 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,800 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,379 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,437 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,873 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,130 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,951 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,846 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,775 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,373 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,060 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,290 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,337 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,062 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,478 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,908,316 |
| Countries in World War I | 0 | - | 4.88 | 229,232 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,222 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,540 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,185 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,071 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,564 |
| Hindu Countries | 0 | - | 4.87 | 50,600 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,913 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,900 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,505 |
| Disney Animals | 0 | - | 4.27 | 241,104 |
| Boundary Waters | 0 | - | 4.92 | 88,785 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,428 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,741 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,393 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,996 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,561 |
| Landlocked Countries | 0 | - | 4.99 | 426,324 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 47,341 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,672 |
| Least-Forested Countries | 0 | - | 4.53 | 65,431 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,355 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,739 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,875 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,891 |
| Countries with More Cows than People | 0 | - | 4.46 | 61,682 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,604 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,751 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,851 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,051 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,224 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,565 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,794 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,428 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,910 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,565 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,233 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,196 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,944 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,434 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,042 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,056 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,782 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,372 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,793 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,915 |
| Island Countries | 0 | - | 4.99 | 712,703 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,469 |
| Himalayan Countries | 0 | - | 4.93 | 140,416 |
| Andean Countries | 0 | - | 4.94 | 85,561 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,712 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,157 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,276 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,515 |
| Danube Countries | 0 | - | 4.97 | 72,453 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,661 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,885 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,227 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,698 |
| European Landlocked Countries | 0 | - | 4.99 | 147,646 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,366 |
| Countries with the Most Species | 0 | - | 4.99 | 103,593 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,472 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,788 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,903 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,866 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,604 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,052 |
| Countries in the Alps | 0 | - | 4.87 | 118,834 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,739 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,957 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,993 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,069 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,008 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,297 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,454 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,901 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,452 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,216 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,904 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,768 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,590 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,832 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,925 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,936 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,645 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,974 |
| Catholic Countries | 0 | - | 4.80 | 215,664 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,721 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,880 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,248 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,542 |
| Largest Countries By Category | 0 | - | 4.97 | 158,924 |
| Countries by Countries | 0 | - | 4.96 | 63,685 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,858 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,309 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,420 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,793 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,685 |
| Communist Countries in History | 0 | - | 4.63 | 498,370 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,586 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,132 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,182 |
| Northernmost Countries | 0 | - | 4.99 | 364,203 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 37,956 |
| Companies by Country | 0 | - | 4.61 | 120,459 |
| Countries of South America | 0 | - | 5.00 | 933,208 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,143 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,509 |
| "Land" Countries | 0 | - | 4.98 | 338,499 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,279 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,554 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,500 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,993 |
| All Country Flags of the World | 0 | - | 5.00 | 3,717,066 |
| Top World Languages | 0 | - | 4.92 | 830,279 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,825 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,626 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,195 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,591 |
| Longest International Borders | 0 | - | 4.99 | 265,873 |
| Countries with Three Borders | 0 | - | 4.96 | 36,791 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,377 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,512 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,199 |
| Demonym of Every Country | 0 | - | 4.90 | 61,528 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,353 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,176 |
| Elements Named for Countries | 0 | - | 4.52 | 24,984 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,825 |
| Biblical Geography | 0 | - | 4.40 | 67,356 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,741 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,021 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,725 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,645 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,273 |
| Countries with Megacities | 0 | - | 4.99 | 267,351 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,948 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,206 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,266 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,310 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,164 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,018 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,125 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,221 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,368 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,028 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,624 |
