| Busiest Airports in Europe | 0 | - | 4.91 | 146,817 |
| World's Busiest Airports | 0 | - | 4.96 | 236,256 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,743,796 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,892 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 216,108 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,669 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,641 |
| Top World Languages | 0 | - | 4.92 | 827,421 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,995 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,960 |
| Cities by Airports | 0 | - | 4.47 | 103,767 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,497 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,421 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 122,703 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,512 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,071 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,555 |
| Boundary Waters | 0 | - | 4.92 | 88,683 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,342 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,497 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,828 |
| World Currency Quiz | 0 | - | 4.92 | 305,606 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,955 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,544 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,439 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,032 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,802 |
| Landlocked Countries | 0 | - | 4.99 | 423,978 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,418 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,865 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,826 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,731 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,748 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,836 |
| World Capitals Quiz | 0 | - | 5.00 | 5,095,782 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,409 |
| Himalayan Countries | 0 | - | 4.94 | 139,580 |
| Andean Countries | 0 | - | 4.94 | 85,084 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,273 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,498 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,838 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,140 |
| Danube Countries | 0 | - | 4.97 | 72,221 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,331 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,646 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,738 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,242 |
| European Landlocked Countries | 0 | - | 4.99 | 147,399 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,005 |
| Countries with the Most Species | 0 | - | 4.99 | 103,433 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,128 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,689 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,800 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,709 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,443 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,856 |
| Countries in the Alps | 0 | - | 4.87 | 118,507 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,225 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,120 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,482 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,822 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,821 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,756 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,102 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,941 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,686 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,311 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,026 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,634 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,399 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,642 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,733 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,398 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,480 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,317 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,383 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,973 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,699 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,392 |
| Largest Countries By Category | 0 | - | 4.97 | 158,561 |
| Countries by Countries | 0 | - | 4.96 | 63,453 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,351 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,924 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,054 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,058 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,280 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,930 |
| Demonyms Quiz | 0 | - | 4.15 | 185,447 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,578 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,603 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,447 |
| Longest International Borders | 0 | - | 4.99 | 265,543 |
| Countries with Three Borders | 0 | - | 4.96 | 36,696 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,259 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,379 |
| Demonym of Every Country | 0 | - | 4.90 | 61,185 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,356 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,373 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,621 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,152 |
| Island Countries | 0 | - | 4.99 | 711,834 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,637 |
| Northernmost Countries | 0 | - | 4.99 | 363,154 |
| Countries of South America | 0 | - | 5.00 | 930,136 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,503 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,838 |
| "Land" Countries | 0 | - | 4.98 | 337,915 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,876 |
| Airline Logos | 0 | - | 4.45 | 141,237 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,657 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,473 |
| Countries with Megacities | 0 | - | 4.99 | 265,934 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,270 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,762 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,526 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,873 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,166 |
| Cities by Famous Street | 0 | - | 3.96 | 48,370 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,172 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,989 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,907 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,799 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,989 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,921 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,798 |
| Countries by Capital City | 0 | - | 5.00 | 69,080 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,650 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,056 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,630 |
| Moved Capital Cities | 0 | - | 4.96 | 74,524 |
| Countries by Official Language | 0 | - | 4.95 | 195,673 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,159 |
| Countries in their Native Language | 0 | - | 4.99 | 199,444 |
| Independence from Whom | 0 | - | 4.99 | 212,618 |
| Subdivisions by Country | 0 | - | 4.87 | 50,543 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,115 |
| Megadiverse Countries | 0 | - | 4.96 | 135,161 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,463 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,464 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,354 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,166 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,386 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,707 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,789 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,476 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,752 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,209 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,110 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,274 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,337 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,065 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,481 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,608 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,104 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,880 |
| World Map Quiz | 0 | - | 4.81 | 65,388 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,542 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,793 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,715 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,368 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,022 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,219 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,342 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,550 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,594 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,393 |
| Widest Countries East to West | 0 | - | 4.92 | 130,232 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,541 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,042 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,446 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,943 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,818 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,213 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,450 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,854 |
| Countries with Double Letters | 0 | - | 4.96 | 96,706 |
| Countries that End in N | 0 | - | 4.95 | 171,588 |
| Countries with Five Letters | 0 | - | 4.96 | 283,249 |
| Countries with Six Letters | 0 | - | 4.94 | 214,050 |
| Countries with W | 0 | - | 4.96 | 160,659 |
| Countries with Z | 0 | - | 4.98 | 292,007 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,027 |
| Countries That End in U | 0 | - | 4.95 | 121,036 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,822 |
| Countries that End in O | 0 | - | 4.92 | 159,680 |
| Countries that End in R | 0 | - | 4.87 | 119,081 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,837 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,492 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,950 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,667 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,589 |
| Countries That End in Y | 0 | - | 4.91 | 186,005 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,215 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,088 |
| Countries that End in I | 0 | - | 4.94 | 135,224 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,395 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,944 |
| Countries That End in NIA | 0 | - | 4.92 | 109,931 |
| Countries That End in BIA | 0 | - | 4.93 | 149,414 |
