| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,972 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,506 |
| World's Busiest Airports | 0 | - | 4.95 | 225,710 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,911 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,130,276 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,860 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,460 |
| Top World Languages | 0 | - | 4.92 | 816,725 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,120 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,592 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,060 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,258 |
| Cities by Airports | 0 | - | 4.49 | 88,476 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,047 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,500 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,954 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,125 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,773 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,928 |
| World Currency Quiz | 0 | - | 4.92 | 300,222 |
| Boundary Waters | 0 | - | 4.92 | 88,202 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,939 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,609 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,552 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,932 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,468 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,801 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,838 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,842 |
| Landlocked Countries | 0 | - | 4.99 | 416,236 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,785 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,341 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,226 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,487 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,310 |
| World Capitals Quiz | 0 | - | 5.00 | 5,047,748 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,725 |
| Himalayan Countries | 0 | - | 4.95 | 136,328 |
| Andean Countries | 0 | - | 4.95 | 83,389 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,651 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,879 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,346 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,954 |
| Danube Countries | 0 | - | 4.97 | 71,352 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,147 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,812 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,070 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,020 |
| European Landlocked Countries | 0 | - | 4.99 | 146,078 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,691 |
| Countries with the Most Species | 0 | - | 4.99 | 99,775 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,840 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,310 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,486 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,128 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,779 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,152 |
| Countries in the Alps | 0 | - | 4.86 | 117,277 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,921 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,866 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,799 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,226 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,691 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,741 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,216 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,943 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,966 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,765 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,298 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,337 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,188 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,689 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,959 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,969 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,631 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,866 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,399 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,152 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,761 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,462 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,789 |
| Largest Countries By Category | 0 | - | 4.97 | 157,201 |
| Countries by Countries | 0 | - | 4.96 | 62,557 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,068 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,046 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,737,636 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,987 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,612 |
| Demonyms Quiz | 0 | - | 4.15 | 184,968 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,314 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,128 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,825 |
| Longest International Borders | 0 | - | 4.99 | 264,246 |
| Countries with Three Borders | 0 | - | 4.96 | 36,328 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,762 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,842 |
| Demonym of Every Country | 0 | - | 4.91 | 58,880 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,504 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,576,859 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,638 |
| Island Countries | 0 | - | 4.99 | 708,672 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,850 |
| Northernmost Countries | 0 | - | 4.99 | 359,154 |
| Countries of South America | 0 | - | 5.00 | 919,096 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,921 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,272 |
| "Land" Countries | 0 | - | 4.98 | 334,316 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,371 |
| Airline Logos | 0 | - | 4.45 | 140,235 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,421 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,924 |
| All Country Flags of the World | 0 | - | 5.00 | 3,625,883 |
| Foods of the World by Description | 0 | - | 4.18 | 45,971 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,254 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,242 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,309 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,687 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,164 |
| Countries with Megacities | 0 | - | 4.99 | 248,705 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,027 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,481 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,395 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,431 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,553 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,056 |
| Cities by Famous Street | 0 | - | 3.96 | 48,281 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,095 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,388 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,509 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,008 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,998 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,234 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,080 |
| Countries by Capital City | 0 | - | 5.00 | 67,372 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,684 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,203 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,548 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,647 |
| Moved Capital Cities | 0 | - | 4.96 | 73,845 |
| Countries by Official Language | 0 | - | 4.95 | 193,877 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,352 |
| Countries in their Native Language | 0 | - | 4.99 | 197,518 |
| Independence from Whom | 0 | - | 4.99 | 210,436 |
| Subdivisions by Country | 0 | - | 4.86 | 50,176 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,253 |
| Megadiverse Countries | 0 | - | 4.96 | 134,511 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,712 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,061 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,610 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,939 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,391 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,185 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,503 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,515 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,349 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,797 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,107 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,560 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,659 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,628 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,833 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,183 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,407 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,661 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,982 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,622 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,348 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,595 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,223 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,413 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,590 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,125 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,611 |
| Widest Countries East to West | 0 | - | 4.92 | 129,105 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,318 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,599 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,891 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,927 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,942 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,319 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,013 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,660 |
| Airlines by Country | 0 | - | 4.52 | 135,022 |
| Countries with Double Letters | 0 | - | 4.96 | 93,845 |
| Countries that End in N | 0 | - | 4.94 | 157,277 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,244 |
| Countries with Six Letters | 0 | - | 4.93 | 210,868 |
| Countries with W | 0 | - | 4.97 | 158,534 |
| Countries with Z | 0 | - | 4.98 | 288,436 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,871 |
| Countries That End in U | 0 | - | 4.95 | 119,672 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,036 |
| Countries that End in O | 0 | - | 4.92 | 158,713 |
| Countries that End in R | 0 | - | 4.87 | 118,423 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,978 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,599 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,652 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,740 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,307 |
| Countries That End in Y | 0 | - | 4.90 | 185,331 |
