| Countries of the World Quiz | 0 | - | 5.00 | 47,004,754 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,299 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,380 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,287 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,734 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,451 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,563 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,386 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,103 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,488 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,152 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,373 |
| Countries with Glaciers | 0 | - | 4.97 | 104,736 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,717 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,724 |
| World Currency Quiz | 0 | - | 4.92 | 299,208 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,469 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,705 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,118 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,667 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,620 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,975 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,700 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,478 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,352 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,836 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,337 |
| 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 |
| Cities by Airports | 0 | - | 4.49 | 88,341 |
| World Capitals with the Most International Tourists | 0 | - | 4.49 | 53,244 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,342 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 44,955 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,611 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,202 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,798 |
| Landlocked Countries | 0 | - | 4.99 | 414,665 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,849 |
| Least-Forested Countries | 0 | - | 4.53 | 64,946 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,776 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,327 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,367 |
| World's Biggest Airlines | 0 | - | 4.44 | 124,062 |
| Airline Logos | 0 | - | 4.45 | 140,074 |
| 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 |
| 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 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,556 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,001 |
| 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 |
| Airlines by Country | 0 | - | 4.52 | 134,907 |
| 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 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,331 |
| 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 | 3,612,062 |
| Foods of the World by Description | 0 | - | 4.18 | 45,950 |
| Top World Languages | 0 | - | 4.92 | 814,533 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,634 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,774 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,270 |
| 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 | 41,655 |
| 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 |
| Elements Named for Countries | 0 | - | 4.52 | 24,453 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,198 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,628 |
| 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 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,040 |
| Cities by Famous Street | 0 | - | 3.96 | 48,261 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,076 |
| 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 | 192,991 |
| 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 |
| World Map Quiz | 0 | - | 4.81 | 63,690 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,271 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,454 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,621 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,397 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,133 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,110 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,035 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,222 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,420 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,025 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,466 |
| Widest Countries East to West | 0 | - | 4.92 | 128,960 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,261 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,369 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,617 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,792 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,729 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,162 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 74,558 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,627 |
