| Largest Lakes in the United States on a Map | 0 | - | 4.89 | 21,449 |
| World's Longest Rivers | 0 | - | 4.88 | 108,473 |
| Tectonic Plates Map Quiz | 0 | - | 4.97 | 55,747 |
| Countries That Touch the Baltic Sea | 0 | - | 4.99 | 111,621 |
| North Sea Countries | 0 | - | 4.92 | 79,965 |
| Black Sea Countries | 0 | - | 4.88 | 57,150 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 61,000 |
| Caspian Sea Countries | 0 | - | 4.91 | 58,564 |
| Countries With No Rivers | 0 | - | 4.96 | 68,874 |
| Countries with the Shortest Coastlines | 0 | - | 4.82 | 54,385 |
| World's Longest Rivers on a Map | 0 | - | 4.92 | 77,143 |
| Rivers of Europe Quiz | 0 | - | 4.90 | 47,535 |
| Seas on the World Map | 0 | - | 4.98 | 120,993 |
| Seas of the World | 0 | - | 5.00 | 125,967 |
| Biggest Lakes in the World | 0 | - | 4.65 | 83,093 |
| Great Lakes Quiz | 0 | - | 4.76 | 46,019 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,266 |
| Countries with Fjords | 0 | - | 4.92 | 77,853 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.98 | 104,731 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 67,726 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 46,540 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 72,736 |
| Cities on a Map of the Great Lakes | 0 | - | 4.42 | 40,847 |
| Countries Bordering the Four Color Seas | 0 | - | 4.90 | 18,333 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 30,612 |
| Famous Lakes Quiz | 0 | - | 4.49 | 22,801 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 137,138 |
| Famous Rivers | 0 | - | 4.76 | 98,161 |
| Most Populous River Basins | 0 | - | 4.66 | 37,424 |
| Rivers that Flow through the Most Countries | 0 | - | 4.52 | 37,307 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 388,618 |
| Biggest City by River | 0 | - | 4.42 | 50,767 |
| Megadiverse Countries | 0 | - | 4.96 | 124,896 |
| Gulfs and Bays on the World Map | 0 | - | 4.58 | 26,803 |
| City to River #1 | 0 | - | 4.53 | 24,669 |
| City to River #2 - Difficult | 0 | - | 4.51 | 14,076 |
| Largest Rivers by Discharge | 0 | - | 4.51 | 14,821 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 34,683 |
| Landforms Quiz | 0 | - | 4.34 | 74,448 |
| Geologic Time Scale | 0 | - | 4.46 | 8,957 |
| Seas that Touch the Most Countries | 0 | - | 4.72 | 89,301 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 69,853 |
| Atlantic Ocean General Knowledge | 0 | - | 4.67 | 19,907 |
| Indian Ocean General Knowledge | 0 | - | 4.50 | 21,038 |
| Bodies of Water by Cities | 0 | - | 4.79 | 26,606 |
| Rivers by City Quiz | 0 | - | 4.35 | 21,747 |
| Landforms by Description Quiz | 0 | - | 4.38 | 25,549 |
| Capital Cities by Body of Water | 0 | - | 4.87 | 53,078 |
| Rivers on Borders | 0 | - | 4.06 | 21,868 |
| Boundary Waters | 0 | - | 4.93 | 80,563 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 74,044 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,578,141 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 319,095 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.82 | 29,869 |
| World Capitals Quiz | 0 | - | 5.00 | 4,469,522 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,031,966 |
| World Geography on a Map #1 | 0 | - | 4.93 | 66,964 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,436 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,049 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,372,635 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 339,109 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,646 |
| Countries on the Equator | 0 | - | 4.83 | 133,432 |
| Members of the Arab League | 0 | - | 4.83 | 59,904 |
| Island Countries Quiz | 0 | - | 4.99 | 639,771 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,579 |
| Himalayan Countries | 0 | - | 4.95 | 102,971 |
| Andean Countries | 0 | - | 4.90 | 57,234 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 58,070 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,690 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,049 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,654 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,853 |
| Danube Countries | 0 | - | 4.97 | 56,419 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,454 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,650 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,562 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,922 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,565 |
| European Landlocked Countries | 0 | - | 4.99 | 114,906 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,903 |
| Countries with the Most Species | 0 | - | 4.99 | 89,119 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,964 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,508 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,861 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,866 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,187 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,511 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,789 |
| Countries in the Alps | 0 | - | 4.83 | 102,027 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,814 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,109 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,219 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,851 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,511 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,179 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,195 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,852 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,120 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,281 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,028 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,391 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,478 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,091 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,606 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,094 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,931 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,039 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,056 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,734 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,779 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,033 |
| Largest Countries By Category | 0 | - | 4.96 | 144,111 |
| Countries by Countries | 0 | - | 4.96 | 54,227 |
| Country Flags with the Most White | 0 | - | 4.92 | 119,272 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,454 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,564 |
| Biggest Countries by Area | 0 | - | 5.00 | 926,815 |
| Northernmost Countries | 0 | - | 4.99 | 325,749 |
| Countries of South America | 0 | - | 5.00 | 785,833 |
| Countries of Oceania | 0 | - | 5.00 | 884,829 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,119,483 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,556,850 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 75,468 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 133,674 |
| Western Europe Map Quiz | 0 | - | 4.86 | 88,892 |
| Top World Languages | 0 | - | 4.91 | 701,076 |
| Tourist Attraction by Negative Review | 0 | - | 4.90 | 59,290 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,312 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 180,382 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 110,306 |
| Longest International Borders | 0 | - | 4.99 | 233,107 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 35,551 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 39,514 |
| Demonym of Every Country | 0 | - | 4.91 | 48,992 |
| Analogies of Countries #1 | 0 | - | 4.84 | 49,990 |
| Five Letter Geography #4 | 0 | - | 4.84 | 65,226 |
| Name a Valid Answer - Geography | 0 | - | 4.92 | 76,232 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,522 |
| Countries with Megacities | 0 | - | 4.99 | 195,299 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,939 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 97,088 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 94,023 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,953 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,754 |
| Global Cities on a World Map | 0 | - | 4.93 | 90,870 |
| Northernmost Capital Cities | 0 | - | 4.98 | 93,354 |
| Most Remote Capital Cities | 0 | - | 4.90 | 43,308 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 33,947 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 90,072 |
| Same Letter Country and Capital | 0 | - | 4.99 | 126,388 |
| Countries by Capital City | 0 | - | 4.99 | 48,628 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,476 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 103,452 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 72,395 |
| Moved Capital Cities | 0 | - | 4.94 | 52,004 |
| Countries by Official Language | 0 | - | 4.95 | 153,767 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 247,313 |
| Countries in their Native Language | 0 | - | 4.98 | 177,263 |
| Independence from Whom | 0 | - | 4.99 | 184,187 |
| Subdivisions by Country | 0 | - | 4.82 | 46,255 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,568 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,264 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,127 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,180 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,298 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,848 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,131 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,431 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,615 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,141 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,203 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,923 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,608 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,547 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,149 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,863 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,682 |
| World Map Quiz | 0 | - | 4.90 | 48,371 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 111,332 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,935 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,661 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,304 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,281 |
| Countries With the Most Languages | 0 | - | 4.90 | 172,041 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 86,706 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 71,038 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,679 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,437 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,991 |
| Widest Countries East to West | 0 | - | 4.93 | 118,860 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,725 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,106 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,182 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,942 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,290 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,686 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,310 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,910 |
| Countries with Double Letters | 0 | - | 4.96 | 67,342 |
