| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,865 |
| Busiest Airports in Europe | 0 | - | 4.91 | 146,135 |
| World's Busiest Airports | 0 | - | 4.96 | 233,098 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,714 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,395,558 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,300 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,743 |
| Top World Languages | 0 | - | 4.92 | 821,219 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,503 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,994 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,775 |
| Cities by Airports | 0 | - | 4.49 | 88,690 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,722 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,323 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,090 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,330 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,898 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,319 |
| World Currency Quiz | 0 | - | 4.91 | 302,524 |
| Boundary Waters | 0 | - | 4.92 | 88,427 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,125 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,005 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,907 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,113 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,715 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,036 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,267 |
| Places in their Native Language #2 | 0 | - | 4.79 | 134,153 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,917 |
| Landlocked Countries | 0 | - | 4.99 | 419,711 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,891 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,545 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,821 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,043 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,544 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,619 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,315 |
| Himalayan Countries | 0 | - | 4.95 | 137,756 |
| Andean Countries | 0 | - | 4.95 | 84,096 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,334 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,867 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,966 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,445 |
| Danube Countries | 0 | - | 4.97 | 71,739 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,665 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,140 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,797 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,877 |
| European Landlocked Countries | 0 | - | 4.99 | 146,863 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,240 |
| Countries with the Most Species | 0 | - | 4.99 | 103,007 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,397 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,458 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,621 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,371 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,045 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,439 |
| Countries in the Alps | 0 | - | 4.87 | 117,819 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,051 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,216 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,540 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,470 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,300 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,207 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,781 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,373 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,024 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,625 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,372 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,994 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,260 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,280 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,355 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,117 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,623 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,659 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,739 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,442 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,043 |
| Largest Countries By Category | 0 | - | 4.97 | 157,786 |
| Countries by Countries | 0 | - | 4.96 | 62,924 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,181 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,413 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,762,023 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,479 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,771 |
| Demonyms Quiz | 0 | - | 4.15 | 185,110 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,417 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,341 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,130 |
| Longest International Borders | 0 | - | 4.99 | 264,812 |
| Countries with Three Borders | 0 | - | 4.96 | 36,496 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,959 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,082 |
| Demonym of Every Country | 0 | - | 4.91 | 59,234 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,673 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,683 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,823 |
| Island Countries | 0 | - | 4.99 | 710,088 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,943 |
| Northernmost Countries | 0 | - | 4.99 | 360,863 |
| Countries of South America | 0 | - | 5.00 | 924,036 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,672 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,246 |
| "Land" Countries | 0 | - | 4.98 | 335,991 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,028 |
| Airline Logos | 0 | - | 4.45 | 140,640 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,588 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,467 |
| All Country Flags of the World | 0 | - | 5.00 | 3,657,141 |
| Foods of the World by Description | 0 | - | 4.18 | 46,025 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,367 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,298 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,497 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,036 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,252 |
| Countries with Megacities | 0 | - | 4.99 | 262,407 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,087 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,113 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,390 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,166 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,786 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,103 |
| Cities by Famous Street | 0 | - | 3.96 | 48,312 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,120 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,000 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,117 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,320 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,396 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,112 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,850 |
| Countries by Capital City | 0 | - | 5.00 | 68,111 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,088 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,574 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,017 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,078 |
| Moved Capital Cities | 0 | - | 4.96 | 74,128 |
| Countries by Official Language | 0 | - | 4.95 | 194,799 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,746 |
| Countries in their Native Language | 0 | - | 4.99 | 198,338 |
| Independence from Whom | 0 | - | 4.99 | 211,534 |
| Subdivisions by Country | 0 | - | 4.86 | 50,324 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,849 |
| Megadiverse Countries | 0 | - | 4.96 | 134,822 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,668 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,221 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,792 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,036 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,810 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,432 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,089 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,893 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,531 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,018 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,176 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,761 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,039 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,828 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,205 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,373 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,423 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,116 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,659 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,018 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,749 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,581 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,618 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,766 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,903 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,316 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,354 |
| Widest Countries East to West | 0 | - | 4.92 | 129,441 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,405 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,058 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,029 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,582 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,319 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,631 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,276 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,742 |
| Airlines by Country | 0 | - | 4.52 | 135,314 |
| Countries with Double Letters | 0 | - | 4.97 | 95,244 |
| Countries that End in N | 0 | - | 4.95 | 170,248 |
| Countries with Five Letters | 0 | - | 4.96 | 280,977 |
| Countries with Six Letters | 0 | - | 4.94 | 212,682 |
| Countries with W | 0 | - | 4.97 | 159,630 |
| Countries with Z | 0 | - | 4.98 | 290,388 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,874 |
| Countries That End in U | 0 | - | 4.95 | 120,466 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,889 |
| Countries that End in O | 0 | - | 4.92 | 159,248 |
| Countries that End in R | 0 | - | 4.87 | 118,767 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,545 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,478 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,236 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,154 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,761 |
| Countries That End in Y | 0 | - | 4.91 | 185,684 |
