| Airport Codes Quiz #1 | 0 | - | 4.82 | 217,168 |
| Busiest Airports in Europe | 0 | - | 4.91 | 147,206 |
| World's Busiest Airports | 0 | - | 4.96 | 237,952 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,455 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,966,689 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,885 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,341 |
| Top World Languages | 0 | - | 4.92 | 831,211 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,255 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,967 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,607 |
| Cities by Airports | 0 | - | 4.48 | 104,151 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 137,022 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 127,082 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,639 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,620 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,148 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,130 |
| World Currency Quiz | 0 | - | 4.92 | 307,522 |
| Boundary Waters | 0 | - | 4.92 | 88,832 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,465 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,833 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,802 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,545 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,203 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,630 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,239 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,071 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,987 |
| Landlocked Countries | 0 | - | 4.99 | 427,216 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,131 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,989 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,163 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,186 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,997 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,526 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,899 |
| Himalayan Countries | 0 | - | 4.93 | 140,810 |
| Andean Countries | 0 | - | 4.94 | 85,795 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,911 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,479 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,460 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,686 |
| Danube Countries | 0 | - | 4.97 | 72,549 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,796 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,971 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,433 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,910 |
| European Landlocked Countries | 0 | - | 4.99 | 147,736 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,532 |
| Countries with the Most Species | 0 | - | 4.99 | 103,644 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,634 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,812 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,952 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,923 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,678 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,125 |
| Countries in the Alps | 0 | - | 4.87 | 118,968 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,351 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,980 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,126 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,053 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,170 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,126 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,389 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,591 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,989 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,512 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,311 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,953 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,829 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,670 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,924 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,019 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,143 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,730 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,417 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,833 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,287 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,488 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,614 |
| Largest Countries By Category | 0 | - | 4.97 | 159,084 |
| Countries by Countries | 0 | - | 4.97 | 63,801 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,449 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,227 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,141 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,576 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,023 |
| Demonyms Quiz | 0 | - | 4.15 | 185,600 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,656 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,399 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,653 |
| Longest International Borders | 0 | - | 4.99 | 265,994 |
| Countries with Three Borders | 0 | - | 4.96 | 36,827 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,423 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,566 |
| Demonym of Every Country | 0 | - | 4.90 | 61,633 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,586 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,172 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,032 |
| Island Countries | 0 | - | 4.99 | 713,003 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,124 |
| Northernmost Countries | 0 | - | 4.99 | 364,584 |
| Countries of South America | 0 | - | 5.00 | 934,238 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,455 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,905 |
| "Land" Countries | 0 | - | 4.98 | 338,987 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,386 |
| Airline Logos | 0 | - | 4.45 | 141,565 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,959 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,834 |
| All Country Flags of the World | 0 | - | 5.00 | 3,724,283 |
| Foods of the World by Description | 0 | - | 4.18 | 46,164 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,773 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,406 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,980 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,966 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,490 |
| Countries with Megacities | 0 | - | 4.99 | 267,830 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,138 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,335 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,467 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,431 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,933 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,188 |
| Cities by Famous Street | 0 | - | 3.96 | 48,389 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,192 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,501 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,551 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,082 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,346 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,436 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,372 |
| Countries by Capital City | 0 | - | 5.00 | 69,616 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,139 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,351 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,404 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,953 |
| Moved Capital Cities | 0 | - | 4.96 | 74,732 |
| Countries by Official Language | 0 | - | 4.95 | 196,213 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,938 |
| Countries in their Native Language | 0 | - | 4.99 | 199,952 |
| Independence from Whom | 0 | - | 4.99 | 213,398 |
| Subdivisions by Country | 0 | - | 4.87 | 50,664 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,660 |
| Megadiverse Countries | 0 | - | 4.96 | 148,971 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,133 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,575 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,803 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,257 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,466 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,925 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,273 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,624 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,163 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,286 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,761 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,488 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,506 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,216 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,638 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,974 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,718 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,814 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,507 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,232 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,704 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,925 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,547 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,662 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,849 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,764 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,938 |
| Widest Countries East to West | 0 | - | 4.92 | 130,849 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,628 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,398 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,560 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,158 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,106 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,613 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,534 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,922 |
| Airlines by Country | 0 | - | 4.52 | 135,932 |
| Countries with Double Letters | 0 | - | 4.96 | 97,619 |
| Countries that End in N | 0 | - | 4.95 | 172,623 |
| Countries with Five Letters | 0 | - | 4.96 | 284,628 |
| Countries with Six Letters | 0 | - | 4.94 | 214,953 |
| Countries with W | 0 | - | 4.96 | 161,303 |
| Countries with Z | 0 | - | 4.98 | 292,994 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,664 |
| Countries That End in U | 0 | - | 4.95 | 121,389 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,423 |
| Countries that End in O | 0 | - | 4.92 | 160,369 |
| Countries that End in R | 0 | - | 4.87 | 119,276 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,061 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,144 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 185,620 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,192 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,750 |
| Countries That End in Y | 0 | - | 4.91 | 186,174 |
