| Capital Cities by Body of Water | 0 | - | 4.85 | 57,344 |
| African Great Lakes | 0 | - | 4.82 | 65,339 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,836 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,934 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,113 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,192 |
| 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 | 38,853 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,755 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,415 |
| 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 | 180,079 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 112,479 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 90,891 |
| 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 | 146,717 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,298 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,537 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,520 |
| 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 | 111,628 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,190 |
| Geological Extremes | 0 | - | 4.34 | 39,958 |
| African Physical Geography | 0 | - | 4.51 | 31,587 |
| European Physical Geography | 0 | - | 4.26 | 33,387 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,700 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,478 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,524 |
| South China Sea Countries | 0 | - | 4.78 | 57,522 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,231 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,813 |
| Boundary Waters | 0 | - | 4.92 | 88,100 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,869 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,425 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,004,751 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,342 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,680 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,656 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 44,955 |
| Countries with the Highest Elevation with Exceptions | 0 | - | 4.70 | 59,471 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,810 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,346 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,638 |
| South American Physical Geography | 0 | - | 4.58 | 18,284 |
| Seas of Europe | 0 | - | 4.37 | 83,884 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,798 |
| Landlocked Countries | 0 | - | 4.99 | 414,665 |
| 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 | 81,776 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,488 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,152 |
| Mountains by Country | 0 | - | 4.64 | 81,573 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,326 |
| Countries with More Cows than People | 0 | - | 4.44 | 58,328 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,681 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,017 |
| 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 | 73,237 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,998 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,219 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,252 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,486 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,505 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,380 |
| Island Countries | 0 | - | 4.99 | 708,033 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,025 |
| Himalayan Countries | 0 | - | 4.95 | 135,724 |
| Andean Countries | 0 | - | 4.94 | 83,038 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,384 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,460 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,083 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,746 |
| Danube Countries | 0 | - | 4.97 | 71,188 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,910 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,645 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,721 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,620 |
| European Landlocked Countries | 0 | - | 4.99 | 145,881 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,378 |
| Countries with the Most Species | 0 | - | 4.99 | 95,303 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,545 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,240 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,408 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,021 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,661 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,029 |
| Countries in the Alps | 0 | - | 4.86 | 116,994 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,687 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,465 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,112 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,515 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,303 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,096 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,706 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,607 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,158 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,236 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,104 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,548 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,830 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,833 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,307 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,742 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,313 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,957 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,887 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,009 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,686 |
| Largest Countries By Category | 0 | - | 4.97 | 156,918 |
| Countries by Countries | 0 | - | 4.96 | 62,374 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,224 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,040 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,867 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,886 |
| Northernmost Countries | 0 | - | 4.99 | 358,309 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,705 |
| Countries of South America | 0 | - | 5.00 | 916,682 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,725 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,994 |
| "Land" Countries | 0 | - | 4.98 | 333,926 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,741 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,329 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,817 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,523 |
| All Country Flags of the World | 0 | - | 5.00 | 3,612,061 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,594 |
| Top World Languages | 0 | - | 4.92 | 814,533 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,634 |
| 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 | 206,715 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,702 |
| Longest International Borders | 0 | - | 4.99 | 263,990 |
| Countries with Three Borders | 0 | - | 4.96 | 36,256 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,654 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,752 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,625 |
| Demonym of Every Country | 0 | - | 4.91 | 58,740 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,261 |
| Elements Named for Countries | 0 | - | 4.52 | 24,453 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,701 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,198 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,882 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,081 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,720 |
| Countries with Megacities | 0 | - | 4.99 | 247,793 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,579 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,244 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,967 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,192 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,817 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,023 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,231 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,844 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,792 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,937 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,757 |
| Countries by Capital City | 0 | - | 5.00 | 66,983 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,499 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,037 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,889 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,516 |
| Moved Capital Cities | 0 | - | 4.96 | 73,710 |
| Countries by Official Language | 0 | - | 4.95 | 192,990 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,442 |
| Countries in their Native Language | 0 | - | 4.99 | 196,852 |
| Independence from Whom | 0 | - | 4.99 | 209,962 |
| Subdivisions by Country | 0 | - | 4.86 | 50,115 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,937 |
| Megadiverse Countries | 0 | - | 4.97 | 133,984 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,016 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,971 |
| 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 | 161,792 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,076 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,221 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,252 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,268 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,768 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,771 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,468 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,569 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,559 |
| Most Forested European Countries | 0 | - | 4.80 | 74,980 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,751 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,081 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,910 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,454 |
