| Countries of the World Quiz | 0 | - | 5.00 | 47,466,287 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,661 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,280 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,957 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,924 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,849 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,718 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,890 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,516 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,629 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,541 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,380 |
| Countries with Glaciers | 0 | - | 4.97 | 105,426 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,560 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,418 |
| World Currency Quiz | 0 | - | 4.92 | 303,124 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,652 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,818 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,154 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,096 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,380 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,480 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,948 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,718 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,973 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,137 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,775 |
| Boundary Waters | 0 | - | 4.92 | 88,472 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,171 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,100 |
| Cities by Airports | 0 | - | 4.49 | 88,730 |
| World Capitals with the Most International Tourists | 0 | - | 4.51 | 53,347 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,451 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,299 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,656 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,583 |
| World Capitals Quiz | 0 | - | 5.00 | 5,074,368 |
| Landlocked Countries | 0 | - | 4.99 | 420,608 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,075 |
| Least-Forested Countries | 0 | - | 4.53 | 65,209 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,088 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,768,086 |
| Asia's Busiest Airports | 0 | - | 4.69 | 52,780 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,195 |
| Airline Logos | 0 | - | 4.45 | 140,750 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,149 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,612 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,994 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,191 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,368 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,612 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,072 |
| Island Countries | 0 | - | 4.99 | 710,440 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,752 |
| Himalayan Countries | 0 | - | 4.95 | 138,112 |
| Andean Countries | 0 | - | 4.95 | 84,282 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,502 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,356 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,128 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,579 |
| Danube Countries | 0 | - | 4.97 | 71,844 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,806 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,245 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,991 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,439 |
| European Landlocked Countries | 0 | - | 4.99 | 146,978 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,390 |
| Countries with the Most Species | 0 | - | 4.99 | 103,100 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,544 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,509 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,661 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,448 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,119 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,509 |
| Countries in the Alps | 0 | - | 4.87 | 117,967 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,602 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,731 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,549 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,461 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,318 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,836 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,476 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,344 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,081 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,710 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,568 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,422 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,077 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,357 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,369 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,555 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,184 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,694 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,832 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,219 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,692 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,113 |
| Largest Countries By Category | 0 | - | 4.97 | 157,941 |
| Countries by Countries | 0 | - | 4.97 | 63,020 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,929 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,475 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,221 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,514 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,981 |
| Northernmost Countries | 0 | - | 4.99 | 361,265 |
| Airlines by Country | 0 | - | 4.52 | 135,383 |
| Countries of South America | 0 | - | 5.00 | 925,184 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,168 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,158 |
| "Land" Countries | 0 | - | 4.98 | 336,535 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,568 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,569 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,798 |
| All Country Flags of the World | 0 | - | 5.00 | 3,665,478 |
| Foods of the World by Description | 0 | - | 4.18 | 46,039 |
| Top World Languages | 0 | - | 4.92 | 822,338 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,362 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,021 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,444 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,614 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,194 |
| Longest International Borders | 0 | - | 4.99 | 264,957 |
| Countries with Three Borders | 0 | - | 4.96 | 36,536 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,015 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,138 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,281 |
| Demonym of Every Country | 0 | - | 4.91 | 60,211 |
| Elements Named for Countries | 0 | - | 4.53 | 24,709 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,400 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,367 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,856 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,376 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,484 |
| Countries with Megacities | 0 | - | 4.99 | 263,488 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,330 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,265 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,623 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,298 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,988 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,114 |
| Cities by Famous Street | 0 | - | 3.96 | 48,320 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,130 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,146 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,257 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,410 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,503 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,236 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,014 |
| Countries by Capital City | 0 | - | 5.00 | 68,292 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,173 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,654 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,462 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,206 |
| Moved Capital Cities | 0 | - | 4.96 | 74,214 |
| Countries by Official Language | 0 | - | 4.95 | 194,953 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,970 |
| Countries in their Native Language | 0 | - | 4.99 | 198,469 |
| Independence from Whom | 0 | - | 4.99 | 211,731 |
| Subdivisions by Country | 0 | - | 4.86 | 50,363 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,002 |
| Megadiverse Countries | 0 | - | 4.96 | 134,894 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,814 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,266 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,849 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,061 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,923 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,489 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,231 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,942 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,568 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,357 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,798 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,097 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,873 |
| Most Forested European Countries | 0 | - | 4.80 | 75,337 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,254 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,420 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,715 |
| World Map Quiz | 0 | - | 4.81 | 64,884 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,444 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,200 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,798 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,106 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,836 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,799 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,736 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,867 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,177 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,358 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,447 |
| Widest Countries East to West | 0 | - | 4.92 | 129,515 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,417 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,183 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,066 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,643 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,420 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,711 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,314 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,767 |
