| Capital Cities by Body of Water | 0 | - | 4.85 | 57,343 |
| African Great Lakes | 0 | - | 4.82 | 65,336 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,835 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,932 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,111 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,190 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,932 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,492 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,852 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,747 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,409 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,563 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,515 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,075 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 112,478 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 90,889 |
| Asian Physical Geography | 0 | - | 4.61 | 35,392 |
| Rivers of the United States | 0 | - | 4.93 | 65,614 |
| Countries with Glaciers | 0 | - | 4.97 | 104,736 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,716 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,298 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,533 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,515 |
| Landforms by Country | 0 | - | 4.52 | 51,924 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,932 |
| Capitals by River | 0 | - | 4.55 | 48,245 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,627 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,183 |
| Geological Extremes | 0 | - | 4.34 | 39,958 |
| African Physical Geography | 0 | - | 4.51 | 31,586 |
| European Physical Geography | 0 | - | 4.26 | 33,387 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,697 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,477 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,524 |
| South China Sea Countries | 0 | - | 4.78 | 57,520 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,231 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,811 |
| Boundary Waters | 0 | - | 4.92 | 88,099 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,866 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,421 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,003,396 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,342 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,677 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,655 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 44,952 |
| Countries with the Highest Elevation with Exceptions | 0 | - | 4.70 | 59,471 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,808 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,343 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,638 |
| South American Physical Geography | 0 | - | 4.58 | 18,284 |
| Seas of Europe | 0 | - | 4.37 | 83,883 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,683 |
| Landlocked Countries | 0 | - | 4.99 | 414,634 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,512 |
| Least-Forested Countries | 0 | - | 4.53 | 64,946 |
| Top 10 African Countries by Coastline | 0 | - | 4.27 | 47,839 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,251 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,775 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,487 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,150 |
| Mountains by Country | 0 | - | 4.64 | 81,572 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,158 |
| Countries with More Cows than People | 0 | - | 4.44 | 58,165 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,681 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,015 |
| Sea in the Answers | 0 | - | 4.10 | 48,600 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,084 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,236 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,992 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,217 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,226 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,457 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,500 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,371 |
| Island Countries | 0 | - | 4.99 | 708,027 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,014 |
| Himalayan Countries | 0 | - | 4.95 | 135,717 |
| Andean Countries | 0 | - | 4.94 | 83,032 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,381 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,451 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,080 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,743 |
| Danube Countries | 0 | - | 4.97 | 71,186 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,907 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,645 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,718 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,618 |
| European Landlocked Countries | 0 | - | 4.99 | 145,881 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,371 |
| Countries with the Most Species | 0 | - | 4.99 | 95,301 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,542 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,239 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,407 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,020 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,658 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,026 |
| Countries in the Alps | 0 | - | 4.86 | 116,990 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,686 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,462 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,111 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,514 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,301 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,095 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,703 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,605 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,155 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,236 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,103 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,543 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,829 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,833 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,305 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,741 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,313 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,952 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,880 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,007 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,686 |
| Largest Countries By Category | 0 | - | 4.97 | 156,912 |
| Countries by Countries | 0 | - | 4.96 | 62,371 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,194 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,036 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,864 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,858 |
| Northernmost Countries | 0 | - | 4.99 | 358,293 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,705 |
| Countries of South America | 0 | - | 5.00 | 916,651 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,671 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,917 |
| "Land" Countries | 0 | - | 4.98 | 333,922 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,735 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,196 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,816 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,523 |
| All Country Flags of the World | 0 | - | 5.00 | 3,611,882 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,594 |
| Top World Languages | 0 | - | 4.92 | 814,510 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,630 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,270 |
| Longest Rivers in the UK | 0 | - | 4.42 | 13,742 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,708 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,701 |
| Longest International Borders | 0 | - | 4.99 | 263,984 |
| Countries with Three Borders | 0 | - | 4.96 | 36,254 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,654 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,749 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,625 |
| Demonym of Every Country | 0 | - | 4.91 | 58,738 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,261 |
| Elements Named for Countries | 0 | - | 4.52 | 24,452 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,700 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,198 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,848 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,074 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,712 |
| Countries with Megacities | 0 | - | 4.99 | 247,777 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,565 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,240 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,964 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,188 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,793 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,019 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,226 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,841 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,791 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,930 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,755 |
| Countries by Capital City | 0 | - | 5.00 | 66,977 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,497 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,035 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,883 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,515 |
| Moved Capital Cities | 0 | - | 4.96 | 73,710 |
| Countries by Official Language | 0 | - | 4.95 | 192,986 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,437 |
| Countries in their Native Language | 0 | - | 4.99 | 196,845 |
| Independence from Whom | 0 | - | 4.99 | 209,959 |
| Subdivisions by Country | 0 | - | 4.86 | 50,115 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,934 |
| Megadiverse Countries | 0 | - | 4.97 | 133,983 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,015 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,969 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,482 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,889 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,791 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,075 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,221 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,244 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,267 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,768 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,770 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,467 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,568 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,557 |
| Most Forested European Countries | 0 | - | 4.80 | 74,979 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,750 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,078 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,904 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,447 |
