| Countries of the World Quiz | 0 | - | 5.00 | 47,901,311 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,980 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,856 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,508 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,111 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,865 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.98 | 110,027 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,246 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,893 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,738 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,868 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,342 |
| Countries with Glaciers | 0 | - | 4.97 | 105,820 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,003 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,042 |
| World Currency Quiz | 0 | - | 4.92 | 306,938 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,789 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.63 | 37,956 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,196 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,568 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,126 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,968 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,227 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,939 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,715 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,510 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,144 |
| Boundary Waters | 0 | - | 4.92 | 88,782 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,729 |
| Cities by Airports | 0 | - | 4.47 | 104,065 |
| World Capitals with the Most International Tourists | 0 | - | 4.51 | 53,490 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,539 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,563 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,721 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,952 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,980 |
| Landlocked Countries | 0 | - | 4.99 | 426,189 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,316 |
| Least-Forested Countries | 0 | - | 4.53 | 65,426 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,352 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,355 |
| Asia's Busiest Airports | 0 | - | 4.70 | 53,147 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,251 |
| Airline Logos | 0 | - | 4.45 | 141,468 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,195 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,937 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,032 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,051 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,703 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,205 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,770 |
| Island Countries | 0 | - | 4.99 | 712,667 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,421 |
| Himalayan Countries | 0 | - | 4.93 | 140,373 |
| Andean Countries | 0 | - | 4.94 | 85,537 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,689 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,113 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,259 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,493 |
| Danube Countries | 0 | - | 4.97 | 72,438 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,642 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,871 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,201 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,674 |
| European Landlocked Countries | 0 | - | 4.99 | 147,640 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,349 |
| Countries with the Most Species | 0 | - | 4.99 | 103,588 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,450 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,785 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,898 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,860 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,597 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,040 |
| Countries in the Alps | 0 | - | 4.87 | 118,825 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,710 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,937 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,985 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,052 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,994 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,289 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,437 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,888 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,446 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,210 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,898 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,758 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,579 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,823 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,915 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,917 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,637 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,553 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,713 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,847 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,223 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,532 |
| Largest Countries By Category | 0 | - | 4.97 | 158,905 |
| Countries by Countries | 0 | - | 4.96 | 63,670 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,612 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,300 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,413 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,130 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,087 |
| Northernmost Countries | 0 | - | 4.99 | 364,165 |
| Airlines by Country | 0 | - | 4.52 | 135,868 |
| Countries of South America | 0 | - | 5.00 | 933,083 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,929 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,249 |
| "Land" Countries | 0 | - | 4.98 | 338,461 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,266 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,491 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,992 |
| All Country Flags of the World | 0 | - | 5.00 | 3,716,313 |
| Foods of the World by Description | 0 | - | 4.18 | 46,145 |
| Top World Languages | 0 | - | 4.92 | 830,168 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,820 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,286 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,622 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,170 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,589 |
| Longest International Borders | 0 | - | 4.99 | 265,851 |
| Countries with Three Borders | 0 | - | 4.96 | 36,786 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,370 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,509 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,935 |
| Demonym of Every Country | 0 | - | 4.90 | 61,513 |
| Elements Named for Countries | 0 | - | 4.52 | 24,975 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,738 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,011 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,567 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,611 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,247 |
| Countries with Megacities | 0 | - | 4.99 | 267,302 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,926 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,185 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,249 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,300 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,910 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,186 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,185 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,355 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,399 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,001 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,241 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,271 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,195 |
| Countries by Capital City | 0 | - | 5.00 | 69,451 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,891 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,261 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,010 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,843 |
| Moved Capital Cities | 0 | - | 4.96 | 74,672 |
| Countries by Official Language | 0 | - | 4.95 | 196,057 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,701 |
| Countries in their Native Language | 0 | - | 4.99 | 199,789 |
| Independence from Whom | 0 | - | 4.99 | 213,144 |
| Subdivisions by Country | 0 | - | 4.87 | 50,633 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,501 |
| Megadiverse Countries | 0 | - | 4.96 | 135,298 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,989 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,549 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,725 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,233 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,312 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,871 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,149 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,578 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,096 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,263 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,594 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,397 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,455 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,160 |
| Most Forested European Countries | 0 | - | 4.80 | 75,693 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,596 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,895 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,427 |
| World Map Quiz | 0 | - | 4.81 | 65,782 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,413 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,737 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,320 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,127 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,600 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,660 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,470 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,572 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,775 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,714 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,790 |
| Widest Countries East to West | 0 | - | 4.92 | 130,698 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,606 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,283 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,526 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,080 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,010 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,506 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,512 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,900 |
