| Countries With No Rivers | 0 | - | 4.96 | 77,091 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,266 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,809 |
| World's Longest Rivers | 0 | - | 4.90 | 137,513 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 82,016 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,907 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,964 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,759 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,019 |
| Countries with Fjords | 0 | - | 4.94 | 101,271 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,876 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,680 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,131 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,233 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 165,249 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,303 |
| Biggest City by River | 0 | - | 4.38 | 52,947 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,150 |
| North Sea Countries | 0 | - | 4.92 | 87,662 |
| Black Sea Countries | 0 | - | 4.87 | 60,719 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,557 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,649 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,354 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,987 |
| Famous Rivers | 0 | - | 4.75 | 105,208 |
| City to River #1 | 0 | - | 4.59 | 35,896 |
| Most Populous River Basins | 0 | - | 4.55 | 39,804 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,460 |
| Seas on the World Map | 0 | - | 4.96 | 135,892 |
| Seas of the World | 0 | - | 5.00 | 158,235 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,712 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,860 |
| Megadiverse Countries | 0 | - | 4.96 | 135,221 |
| Rivers by City | 0 | - | 4.38 | 31,768 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,201 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,078 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,615 |
| Rivers on Borders | 0 | - | 4.02 | 22,735 |
| Geologic Time Scale | 0 | - | 4.41 | 10,060 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 97,079 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,887 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,625 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,846 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,303 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,284 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,715 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,834 |
| The Only Country ... | 0 | - | 4.91 | 81,796 |
| The Only African Country ... | 0 | - | 4.99 | 129,596 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,359 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,033 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,387 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,069 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,261 |
| African Great Lakes | 0 | - | 4.82 | 66,899 |
| Boundary Waters | 0 | - | 4.92 | 88,729 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,383 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,611 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,819,102 |
| Landlocked Countries | 0 | - | 4.99 | 424,928 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,318 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,681 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,584 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,657 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,890 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,874 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,904 |
| World Capitals Quiz | 0 | - | 5.00 | 5,101,703 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,840 |
| Himalayan Countries | 0 | - | 4.93 | 139,926 |
| Andean Countries | 0 | - | 4.94 | 85,264 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,428 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,772 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,997 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,298 |
| Danube Countries | 0 | - | 4.97 | 72,303 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,466 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,748 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,940 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,437 |
| European Landlocked Countries | 0 | - | 4.99 | 147,505 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,163 |
| Countries with the Most Species | 0 | - | 4.99 | 103,512 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,295 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,727 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,839 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,778 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,509 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,942 |
| Countries in the Alps | 0 | - | 4.87 | 118,659 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,437 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,697 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,907 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,941 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,862 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,178 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,298 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,799 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,363 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,100 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,810 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,686 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,483 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,717 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,816 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,625 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,548 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,653 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,552 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,381 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,947 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,461 |
| Largest Countries By Category | 0 | - | 4.97 | 158,735 |
| Countries by Countries | 0 | - | 4.96 | 63,554 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,164 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,377 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,027 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,799,193 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,338 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,390 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,964 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,744 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,603 |
| Rivers A-Z | 0 | - | 4.35 | 32,847 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,895 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,509 |
| Longest International Borders | 0 | - | 4.99 | 265,717 |
| Countries with Three Borders | 0 | - | 4.96 | 36,739 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,312 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,458 |
| Demonym of Every Country | 0 | - | 4.90 | 61,379 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,815 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,597,835 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,404 |
| Cities that End in A by Clue | 0 | - | 4.55 | 53,175 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,449 |
| Cities that End in N by Clue | 0 | - | 4.55 | 54,303 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,517 |
| Cities that End in S by Clue | 0 | - | 4.57 | 45,125 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,450 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,253 |
| Island Countries | 0 | - | 4.99 | 712,252 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,391,855 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,824 |
| Northernmost Countries | 0 | - | 4.99 | 363,630 |
| Countries of South America | 0 | - | 5.00 | 931,564 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,948 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,719 |
| "Land" Countries | 0 | - | 4.98 | 338,209 |
| The Only Asian Country ... | 0 | - | 4.69 | 122,786 |
| Europe Map Quiz | 0 | - | 5.00 | 4,784,362 |
| All Country Flags of the World | 0 | - | 5.00 | 3,707,037 |
| Top World Languages | 0 | - | 4.92 | 828,772 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,183 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,710 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,923 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,960 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,187 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,945 |
| Countries with Megacities | 0 | - | 4.99 | 266,699 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,645 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,999 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,954 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,118 |
| Biggest Cities in the World | 0 | - | 4.91 | 804,771 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,164 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,251 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,906 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,117 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,116 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,018 |
| Countries by Capital City | 0 | - | 5.00 | 69,256 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,781 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,160 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,535 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,747 |
| Moved Capital Cities | 0 | - | 4.96 | 74,597 |
| Capitals by River | 0 | - | 4.55 | 48,382 |
| Countries by Official Language | 0 | - | 4.95 | 195,858 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,449 |
| Countries in their Native Language | 0 | - | 4.99 | 199,626 |
| Independence from Whom | 0 | - | 4.99 | 212,889 |
| Subdivisions by Country | 0 | - | 4.87 | 50,584 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,314 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,837 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,500 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,408 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,202 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,504 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,797 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,013 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,527 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,789 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,236 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,346 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,335 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,403 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,116 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,546 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,658 |
