| Busiest Airports in Europe | 0 | - | 4.91 | 146,409 |
| World's Busiest Airports | 0 | - | 4.96 | 234,594 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,135 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,557,951 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,481 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,999 |
| Top World Languages | 0 | - | 4.92 | 823,845 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,707 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,208 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,211 |
| Cities by Airports | 0 | - | 4.49 | 88,802 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,051 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,794 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,797 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,411 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,957 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,565 |
| World Currency Quiz | 0 | - | 4.92 | 303,930 |
| Boundary Waters | 0 | - | 4.92 | 88,547 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,228 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,228 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,080 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,186 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,860 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,176 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,535 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,454 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,933 |
| Landlocked Countries | 0 | - | 4.99 | 421,657 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,951 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,692 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,364 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,370 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,651 |
| World Capitals Quiz | 0 | - | 5.00 | 5,081,489 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,294 |
| Himalayan Countries | 0 | - | 4.95 | 138,585 |
| Andean Countries | 0 | - | 4.93 | 84,527 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,715 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,715 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,349 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,741 |
| Danube Countries | 0 | - | 4.97 | 71,968 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,967 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,384 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,234 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,716 |
| European Landlocked Countries | 0 | - | 4.99 | 147,094 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,576 |
| Countries with the Most Species | 0 | - | 4.99 | 103,203 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,707 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,570 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,706 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,519 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,200 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,623 |
| Countries in the Alps | 0 | - | 4.87 | 118,155 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,117 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,899 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,982 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,624 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,567 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,461 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,923 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,634 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,462 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,158 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,812 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,634 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,494 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,190 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,438 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,488 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,826 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,284 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,258 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,016 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,761 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,006 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,194 |
| Largest Countries By Category | 0 | - | 4.97 | 158,157 |
| Countries by Countries | 0 | - | 4.96 | 63,164 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,270 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,643 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,776,472 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,682 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,846 |
| Demonyms Quiz | 0 | - | 4.15 | 185,280 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,484 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,915 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,267 |
| Longest International Borders | 0 | - | 4.99 | 265,148 |
| Countries with Three Borders | 0 | - | 4.96 | 36,592 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,104 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,204 |
| Demonym of Every Country | 0 | - | 4.91 | 60,607 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,307 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,761 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,427 |
| Island Countries | 0 | - | 4.99 | 710,922 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,462 |
| Northernmost Countries | 0 | - | 4.99 | 361,806 |
| Countries of South America | 0 | - | 5.00 | 926,867 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,314 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,324 |
| "Land" Countries | 0 | - | 4.98 | 337,243 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,422 |
| Airline Logos | 0 | - | 4.45 | 140,949 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,873 |
| Europe Map Quiz | 0 | - | 5.00 | 4,768,840 |
| All Country Flags of the World | 0 | - | 5.00 | 3,675,977 |
| Foods of the World by Description | 0 | - | 4.18 | 46,058 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,444 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,329 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,662 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,847 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,797 |
| Countries with Megacities | 0 | - | 4.99 | 264,374 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,661 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,422 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,927 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,490 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,458 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,133 |
| Cities by Famous Street | 0 | - | 3.96 | 48,338 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,144 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,390 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,473 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,517 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,635 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,436 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,244 |
| Countries by Capital City | 0 | - | 5.00 | 68,567 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,323 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,779 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,952 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,351 |
| Moved Capital Cities | 0 | - | 4.96 | 74,307 |
| Countries by Official Language | 0 | - | 4.95 | 195,199 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,279 |
| Countries in their Native Language | 0 | - | 4.99 | 198,985 |
| Independence from Whom | 0 | - | 4.99 | 212,015 |
| Subdivisions by Country | 0 | - | 4.86 | 50,420 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,673 |
| Megadiverse Countries | 0 | - | 4.96 | 134,981 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,027 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,332 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,215 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,093 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,076 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,578 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,419 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,008 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,630 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,127 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,621 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,856 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,182 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,946 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,334 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,475 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,099 |
| World Map Quiz | 0 | - | 4.81 | 65,041 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,321 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,017 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,241 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,960 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,118 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,849 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,981 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,269 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,421 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,550 |
| Widest Countries East to West | 0 | - | 4.92 | 129,618 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,441 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,341 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,109 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,749 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,558 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,832 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,364 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,795 |
| Airlines by Country | 0 | - | 4.52 | 135,499 |
| Countries with Double Letters | 0 | - | 4.96 | 96,155 |
| Countries that End in N | 0 | - | 4.95 | 171,035 |
| Countries with Five Letters | 0 | - | 4.96 | 282,279 |
| Countries with Six Letters | 0 | - | 4.94 | 213,462 |
| Countries with W | 0 | - | 4.97 | 160,266 |
| Countries with Z | 0 | - | 4.98 | 291,351 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,630 |
| Countries That End in U | 0 | - | 4.95 | 120,815 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,392 |
| Countries that End in O | 0 | - | 4.92 | 159,486 |
| Countries that End in R | 0 | - | 4.87 | 118,947 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,703 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,002 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,642 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,437 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,354 |
| Countries That End in Y | 0 | - | 4.91 | 185,854 |
