| Countries of the World Quiz | 0 | - | 5.00 | 47,190,712 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,424 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,017 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,605 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,806 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,219 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,620 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,136 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,698 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,221 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,545 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,300 |
| Countries with Glaciers | 0 | - | 4.97 | 104,882 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,910 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,532 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,019 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,742 |
| World Currency Quiz | 0 | - | 4.92 | 300,767 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,852 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,938 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,196 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,799 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,646 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,990 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,526 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,136 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,572 |
| Boundary Waters | 0 | - | 4.92 | 88,256 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,987 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,685 |
| Cities by Airports | 0 | - | 4.49 | 88,540 |
| World Capitals with the Most International Tourists | 0 | - | 4.51 | 53,290 |
| Landlocked Countries | 0 | - | 4.99 | 416,996 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,392 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,091 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,628 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,397 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,329 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,598 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,377 |
| World Capitals Quiz | 0 | - | 5.00 | 5,052,562 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,089 |
| Himalayan Countries | 0 | - | 4.95 | 136,650 |
| Andean Countries | 0 | - | 4.95 | 83,561 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,817 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,102 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,481 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,076 |
| Danube Countries | 0 | - | 4.97 | 71,466 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,278 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,878 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,227 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,221 |
| European Landlocked Countries | 0 | - | 4.99 | 146,164 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,826 |
| Countries with the Most Species | 0 | - | 4.99 | 102,198 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,953 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,347 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,526 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,185 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,836 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,214 |
| Countries in the Alps | 0 | - | 4.86 | 117,386 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,947 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,933 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,981 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,279 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,777 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,867 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,289 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,027 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,017 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,839 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,379 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,382 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,758 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,026 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,032 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,785 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,919 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,452 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,279 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,203 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,667 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,849 |
| Largest Countries By Category | 0 | - | 4.97 | 157,315 |
| Least-Forested Countries | 0 | - | 4.53 | 65,057 |
| Countries by Countries | 0 | - | 4.96 | 62,630 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,089 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 81,891 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,124 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,102 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,129 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,665 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,977 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,560 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,546 |
| Airline Logos | 0 | - | 4.45 | 140,329 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,331 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,379 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,890 |
| Longest International Borders | 0 | - | 4.99 | 264,361 |
| Countries with Three Borders | 0 | - | 4.96 | 36,363 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,798 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,894 |
| Demonym of Every Country | 0 | - | 4.91 | 58,954 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,111 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,265 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,696 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,959 |
| Island Countries | 0 | - | 4.99 | 708,959 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,351 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,754 |
| Northernmost Countries | 0 | - | 4.99 | 359,545 |
| Airlines by Country | 0 | - | 4.52 | 135,089 |
| Countries of South America | 0 | - | 5.00 | 920,172 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,656 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,903 |
| "Land" Countries | 0 | - | 4.98 | 334,789 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,599 |
| All Country Flags of the World | 0 | - | 5.00 | 3,633,179 |
| Foods of the World by Description | 0 | - | 4.18 | 45,988 |
| Top World Languages | 0 | - | 4.92 | 817,807 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,888 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 118,904 |
| Elements Named for Countries | 0 | - | 4.52 | 24,562 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,275 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,455 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,987 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,417 |
| Countries with Megacities | 0 | - | 4.99 | 249,230 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,274 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,620 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,588 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,595 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,458 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,069 |
| Cities by Famous Street | 0 | - | 3.96 | 48,285 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,097 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,526 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,653 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,076 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,102 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,395 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,246 |
| Countries by Capital City | 0 | - | 5.00 | 67,551 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,791 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,284 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,876 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,742 |
| Moved Capital Cities | 0 | - | 4.96 | 73,912 |
| Countries by Official Language | 0 | - | 4.95 | 194,093 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,895 |
| Countries in their Native Language | 0 | - | 4.99 | 197,716 |
| Independence from Whom | 0 | - | 4.99 | 210,894 |
| Subdivisions by Country | 0 | - | 4.86 | 50,214 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,407 |
| Megadiverse Countries | 0 | - | 4.96 | 134,574 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,915 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,089 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,648 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,956 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,475 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,256 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,657 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,576 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,391 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,813 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,372 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,598 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,698 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,665 |
| Most Forested European Countries | 0 | - | 4.80 | 75,133 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,877 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,227 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,670 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,739 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,116 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,705 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,434 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,790 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,305 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,495 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,657 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,163 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,713 |
| Widest Countries East to West | 0 | - | 4.92 | 129,177 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,335 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,703 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,935 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,973 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,011 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,389 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,129 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,683 |
| Countries with Double Letters | 0 | - | 4.96 | 94,274 |
| Countries that End in N | 0 | - | 4.95 | 167,722 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 261,587 |
| Countries with Six Letters | 0 | - | 4.93 | 211,292 |
