| Countries of the World Quiz | 0 | - | 5.00 | 47,003,430 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,298 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,371 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,286 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,733 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,449 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,563 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,379 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,098 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,487 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,150 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,369 |
| Countries with Glaciers | 0 | - | 4.97 | 104,736 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,716 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,719 |
| World Currency Quiz | 0 | - | 4.92 | 299,195 |
| 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 | 102,664 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,619 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,973 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,698 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,477 |
| 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 | 61,335 |
| Boundary Waters | 0 | - | 4.92 | 88,099 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,866 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,422 |
| Cities by Airports | 0 | - | 4.49 | 88,338 |
| 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 | 44,952 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,611 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,201 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,686 |
| Landlocked Countries | 0 | - | 4.99 | 414,634 |
| 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 | 81,775 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,158 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,366 |
| World's Biggest Airlines | 0 | - | 4.44 | 124,058 |
| Airline Logos | 0 | - | 4.45 | 140,068 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,084 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,236 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,992 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,218 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,226 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,459 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,500 |
| Island Countries | 0 | - | 4.99 | 708,027 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,015 |
| Himalayan Countries | 0 | - | 4.95 | 135,717 |
| Andean Countries | 0 | - | 4.94 | 83,032 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,381 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,451 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,081 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,743 |
| Danube Countries | 0 | - | 4.97 | 71,186 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,907 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,645 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,718 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,618 |
| European Landlocked Countries | 0 | - | 4.99 | 145,881 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,371 |
| Countries with the Most Species | 0 | - | 4.99 | 95,301 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,542 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,239 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,407 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,020 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,658 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,026 |
| Countries in the Alps | 0 | - | 4.86 | 116,990 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,686 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,462 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,111 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,514 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,301 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,095 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,703 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,605 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,155 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,236 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,103 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,543 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,829 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,833 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,305 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,741 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,313 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,952 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,880 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,007 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,686 |
| Largest Countries By Category | 0 | - | 4.97 | 156,912 |
| Countries by Countries | 0 | - | 4.96 | 62,371 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,195 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,555 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,001 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,864 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,858 |
| Northernmost Countries | 0 | - | 4.99 | 358,293 |
| Airlines by Country | 0 | - | 4.52 | 134,904 |
| Countries of South America | 0 | - | 5.00 | 916,651 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,674 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,919 |
| "Land" Countries | 0 | - | 4.98 | 333,922 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,199 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,816 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,523 |
| All Country Flags of the World | 0 | - | 5.00 | 3,611,889 |
| Foods of the World by Description | 0 | - | 4.18 | 45,950 |
| Top World Languages | 0 | - | 4.92 | 814,510 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,630 |
| 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 | 206,709 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,701 |
| Longest International Borders | 0 | - | 4.99 | 263,984 |
| Countries with Three Borders | 0 | - | 4.96 | 36,254 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,654 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,749 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,625 |
| Demonym of Every Country | 0 | - | 4.91 | 58,738 |
| Elements Named for Countries | 0 | - | 4.52 | 24,452 |
| 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 | 1,436,848 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,074 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,712 |
| Countries with Megacities | 0 | - | 4.99 | 247,777 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,567 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,240 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,964 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,188 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,794 |
| 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 | 135,019 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,226 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,841 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,791 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,930 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,755 |
| Countries by Capital City | 0 | - | 5.00 | 66,978 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,497 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,035 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,883 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,515 |
| Moved Capital Cities | 0 | - | 4.96 | 73,710 |
| Countries by Official Language | 0 | - | 4.95 | 192,986 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,437 |
| Countries in their Native Language | 0 | - | 4.99 | 196,845 |
| Independence from Whom | 0 | - | 4.99 | 209,959 |
| Subdivisions by Country | 0 | - | 4.86 | 50,115 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,934 |
| Megadiverse Countries | 0 | - | 4.97 | 133,983 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,015 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,969 |
| 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 | 161,791 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,075 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,221 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,245 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,267 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,768 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,770 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,467 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,568 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,557 |
| Most Forested European Countries | 0 | - | 4.80 | 74,979 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,750 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,078 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,904 |
| World Map Quiz | 0 | - | 4.81 | 63,690 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,266 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,447 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,615 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,390 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,130 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,107 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,028 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,217 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,417 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,023 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,463 |
| Widest Countries East to West | 0 | - | 4.92 | 128,957 |
| 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 | 93,790 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,727 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,156 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 74,399 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,626 |
