| World's Busiest Airports | 0 | - | 4.96 | 232,479 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,329,664 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,580 |
| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,662 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,216 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,066 |
| Top World Languages | 0 | - | 4.92 | 820,142 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,438 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,562 |
| Places in their Native Language #2 | 0 | - | 4.79 | 133,855 |
| Cities by Airports | 0 | - | 4.49 | 88,647 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,579 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,127 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,827 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,297 |
| Airports Named for People #1 | 0 | - | 4.44 | 55,877 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,893 |
| Boundary Waters | 0 | - | 4.92 | 88,376 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,079 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,907 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,214 |
| World Currency Quiz | 0 | - | 4.91 | 301,958 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,904 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,841 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,077 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,656 |
| Landlocked Countries | 0 | - | 4.99 | 418,879 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,988 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,169 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,495 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,662 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,895 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,482 |
| World Capitals Quiz | 0 | - | 5.00 | 5,063,377 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,974 |
| Himalayan Countries | 0 | - | 4.94 | 137,400 |
| Andean Countries | 0 | - | 4.95 | 83,922 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,218 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,635 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,823 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,343 |
| Danube Countries | 0 | - | 4.97 | 71,652 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,538 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,048 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,636 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,722 |
| European Landlocked Countries | 0 | - | 4.99 | 146,771 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,125 |
| Countries with the Most Species | 0 | - | 4.99 | 102,905 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,259 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,430 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,585 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,297 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,983 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,357 |
| Countries in the Alps | 0 | - | 4.87 | 117,682 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,007 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,126 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,355 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,411 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,979 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,087 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,498 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,278 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,180 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,963 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,547 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,474 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,335 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,917 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,183 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,203 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,167 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,058 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,568 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,511 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,335 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,212 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,993 |
| Largest Countries By Category | 0 | - | 4.97 | 157,624 |
| Countries by Countries | 0 | - | 4.96 | 62,832 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,158 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,317 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,471 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,857 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,368 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,731 |
| Demonyms Quiz | 0 | - | 4.15 | 185,082 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,389 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,055 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,068 |
| Longest International Borders | 0 | - | 4.99 | 264,651 |
| Countries with Three Borders | 0 | - | 4.96 | 36,452 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,908 |
| Largest Cities for each Latitude Degree | 0 | - | 5.00 | 48,003 |
| Demonym of Every Country | 0 | - | 4.91 | 59,145 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,283 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,933 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,800 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,585 |
| Island Countries | 0 | - | 4.99 | 709,721 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,983 |
| Northernmost Countries | 0 | - | 4.99 | 360,433 |
| Countries of South America | 0 | - | 5.00 | 922,840 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,897 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,145 |
| "Land" Countries | 0 | - | 4.98 | 335,782 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,855 |
| Airline Logos | 0 | - | 4.45 | 140,546 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,344 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,155 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,009 |
| Countries with Megacities | 0 | - | 4.99 | 259,464 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,868 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,984 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,156 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,986 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,090 |
| Cities by Famous Street | 0 | - | 3.96 | 48,306 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,112 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,848 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,963 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,243 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,271 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,971 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,635 |
| Countries by Capital City | 0 | - | 5.00 | 67,921 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,973 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,464 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,968 |
| Moved Capital Cities | 0 | - | 4.96 | 74,061 |
| Countries by Official Language | 0 | - | 4.95 | 194,636 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,511 |
| Countries in their Native Language | 0 | - | 4.99 | 198,175 |
| Independence from Whom | 0 | - | 4.99 | 211,289 |
| Subdivisions by Country | 0 | - | 4.86 | 50,286 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,692 |
| Megadiverse Countries | 0 | - | 4.96 | 134,758 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,535 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,181 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,750 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,015 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,705 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,378 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,966 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,839 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,481 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,986 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,941 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,709 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,990 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,769 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,147 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,324 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,564 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,176 |
| World Map Quiz | 0 | - | 4.81 | 64,508 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,026 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,486 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,923 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,632 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,312 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,513 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,666 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,821 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,258 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,278 |
| Widest Countries East to West | 0 | - | 4.92 | 129,367 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,380 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,953 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,989 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,507 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,214 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,539 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,229 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,725 |
| Countries with Double Letters | 0 | - | 4.97 | 95,077 |
| Countries that End in N | 0 | - | 4.95 | 169,975 |
| Countries with Five Letters | 0 | - | 4.96 | 280,138 |
| Countries with Six Letters | 0 | - | 4.94 | 212,464 |
| Countries with W | 0 | - | 4.97 | 159,515 |
| Countries with Z | 0 | - | 4.98 | 289,787 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,729 |
| Countries That End in U | 0 | - | 4.95 | 120,407 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,741 |
| Countries that End in O | 0 | - | 4.92 | 159,190 |
| Countries that End in R | 0 | - | 4.87 | 118,729 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,507 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,321 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,096 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,074 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,658 |
| Countries That End in Y | 0 | - | 4.90 | 185,646 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,219 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,414 |
| Countries that End in I | 0 | - | 4.94 | 134,863 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,068 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,572 |
| Countries That End in NIA | 0 | - | 4.92 | 109,512 |
| Countries That End in BIA | 0 | - | 4.93 | 148,839 |
