| Countries With No Rivers | 0 | - | 4.96 | 77,178 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,871 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 116,013 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,023 |
| African Great Lakes | 0 | - | 4.82 | 67,011 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,113 |
| Countries with Fjords | 0 | - | 4.94 | 101,401 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,626 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,978 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,277 |
| Capitals by River | 0 | - | 4.55 | 48,391 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,485 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,410 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,383 |
| Rivers of the United States | 0 | - | 4.93 | 66,712 |
| Biggest City by River | 0 | - | 4.38 | 52,967 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,189 |
| North Sea Countries | 0 | - | 4.92 | 87,723 |
| Black Sea Countries | 0 | - | 4.87 | 60,761 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,605 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,701 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,384 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,206 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,744 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,214 |
| Megadiverse Countries | 0 | - | 4.96 | 139,376 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,657 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,973 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,515 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,655 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.98 | 110,032 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,623 |
| African Physical Geography | 0 | - | 4.51 | 31,824 |
| Asian Physical Geography | 0 | - | 4.61 | 35,625 |
| Countries with Glaciers | 0 | - | 4.97 | 105,829 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,102 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,986 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,685 |
| Seas of Europe | 0 | - | 4.37 | 84,935 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,852 |
| Landforms by Country | 0 | - | 4.52 | 52,024 |
| Rivers A-Z | 0 | - | 4.35 | 32,863 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,470 |
| Sea in the Answers | 0 | - | 4.08 | 49,166 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,179 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,648 |
| Geological Extremes | 0 | - | 4.34 | 40,116 |
| European Physical Geography | 0 | - | 4.26 | 33,601 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,366 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,912 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,234 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,890 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,730 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 60,189 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,164 |
| Boundary Waters | 0 | - | 4.92 | 88,788 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,428 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,742 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,909,364 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,540 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,370 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,187 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,073 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,564 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,760 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,709 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,508 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,738 |
| South American Physical Geography | 0 | - | 4.58 | 18,407 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,651 |
| Landlocked Countries | 0 | - | 4.99 | 426,345 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,672 |
| Least-Forested Countries | 0 | - | 4.53 | 65,431 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,357 |
| 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 | 3,806,954 |
| Countries with More Cows than People | 0 | - | 4.46 | 61,682 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,196 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,944 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,044 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,059 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,808 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,412 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,805 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,923 |
| Island Countries | 0 | - | 4.99 | 712,709 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,473 |
| Himalayan Countries | 0 | - | 4.93 | 140,424 |
| Andean Countries | 0 | - | 4.94 | 85,565 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,717 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,163 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,279 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,520 |
| Danube Countries | 0 | - | 4.97 | 72,453 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,665 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,886 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,228 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,701 |
| European Landlocked Countries | 0 | - | 4.99 | 147,649 |
| 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 | 71,475 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,788 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,904 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,868 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,605 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,054 |
| Countries in the Alps | 0 | - | 4.87 | 118,835 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,742 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,963 |
| 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 | 117,009 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,298 |
| 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 | 58,453 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,220 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,906 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,769 |
| 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 | 77,927 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,943 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,646 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,026 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,725 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,887 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,253 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,544 |
| Largest Countries By Category | 0 | - | 4.97 | 158,928 |
| Countries by Countries | 0 | - | 4.96 | 63,688 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,881 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,420 |
| 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 | 1,055,204 |
| Northernmost Countries | 0 | - | 4.99 | 364,207 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 37,957 |
| Countries of South America | 0 | - | 5.00 | 933,218 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,160 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,562 |
| "Land" Countries | 0 | - | 4.98 | 338,502 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,280 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,607 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,500 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,994 |
| All Country Flags of the World | 0 | - | 5.00 | 3,717,200 |
| Top World Languages | 0 | - | 4.92 | 830,297 |
| 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 | 210,200 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,591 |
| Longest International Borders | 0 | - | 4.99 | 265,874 |
| Countries with Three Borders | 0 | - | 4.96 | 36,792 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,378 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,513 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,946 |
| Demonym of Every Country | 0 | - | 4.90 | 61,531 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,353 |
| Elements Named for Countries | 0 | - | 4.52 | 24,985 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,961 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,741 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,755 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,650 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,280 |
| Countries with Megacities | 0 | - | 4.99 | 267,360 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,952 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,208 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,267 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,311 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,036 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,373 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,422 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,012 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,253 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,288 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,211 |
| Countries by Capital City | 0 | - | 5.00 | 69,470 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,905 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,268 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,048 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,855 |
| Moved Capital Cities | 0 | - | 4.96 | 74,678 |
| Countries by Official Language | 0 | - | 4.95 | 196,081 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,736 |
| Countries in their Native Language | 0 | - | 4.99 | 199,808 |
| Independence from Whom | 0 | - | 4.99 | 213,178 |
| Subdivisions by Country | 0 | - | 4.87 | 50,636 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,532 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,005 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,552 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,737 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,234 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,330 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,878 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,162 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,584 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,103 |
