| Airport Codes Quiz #1 | 0 | - | 4.82 | 212,967 |
| Busiest Airports in Europe | 0 | - | 4.91 | 144,849 |
| World's Busiest Airports | 0 | - | 4.94 | 210,224 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,044 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,881,042 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,127 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,506 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,374 |
| Top World Languages | 0 | - | 4.92 | 812,494 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,749 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,328 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,926 |
| Cities by Airports | 0 | - | 4.49 | 87,766 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,192 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,756 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 118,836 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,938 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,675 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,531 |
| World Currency Quiz | 0 | - | 4.92 | 298,104 |
| Boundary Waters | 0 | - | 4.92 | 88,020 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,794 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,221 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,965 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,762 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,222 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,565 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,393 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,773 |
| Landlocked Countries | 0 | - | 4.99 | 413,177 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,674 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,128 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,524 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,886 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,107 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,373 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,390 |
| Himalayan Countries | 0 | - | 4.95 | 135,167 |
| Andean Countries | 0 | - | 4.94 | 82,735 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,151 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,082 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,822 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,517 |
| Danube Countries | 0 | - | 4.97 | 71,033 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,698 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,489 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,368 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,285 |
| European Landlocked Countries | 0 | - | 4.99 | 145,701 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,115 |
| Countries with the Most Species | 0 | - | 4.99 | 95,216 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,267 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,190 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,351 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,928 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,542 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,903 |
| Countries in the Alps | 0 | - | 4.87 | 116,749 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,796 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,515 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,162 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,975 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,371 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,101 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,959 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,513 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,716 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,910 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,009 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,179 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,014 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,399 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,704 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,712 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,964 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,596 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,223 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,723 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,018 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,479 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,568 |
| Largest Countries By Category | 0 | - | 4.97 | 156,680 |
| Countries by Countries | 0 | - | 4.96 | 62,214 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,710 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,642 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,662 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,471 |
| Demonyms Quiz | 0 | - | 4.15 | 184,812 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,222 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,268 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,583 |
| Longest International Borders | 0 | - | 4.99 | 263,447 |
| Countries with Three Borders | 0 | - | 4.96 | 36,157 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,583 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,631 |
| Demonym of Every Country | 0 | - | 4.91 | 58,600 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,364 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,976 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,969 |
| Island Countries | 0 | - | 4.99 | 707,403 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,842 |
| Northernmost Countries | 0 | - | 4.99 | 357,457 |
| Countries of South America | 0 | - | 5.00 | 913,962 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,332 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,540 |
| "Land" Countries | 0 | - | 4.98 | 333,513 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,782 |
| Airline Logos | 0 | - | 4.45 | 139,894 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,000 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,127 |
| All Country Flags of the World | 0 | - | 5.00 | 3,597,675 |
| Foods of the World by Description | 0 | - | 4.18 | 45,931 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,145 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,205 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,186 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,407 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,963 |
| Countries with Megacities | 0 | - | 4.99 | 246,437 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,878 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,777 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,342 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,735 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,777 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,022 |
| Cities by Famous Street | 0 | - | 3.96 | 48,243 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,062 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,671 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,869 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,607 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,555 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,529 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,316 |
| Countries by Capital City | 0 | - | 5.00 | 66,542 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,267 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,853 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,150 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,369 |
| Moved Capital Cities | 0 | - | 4.96 | 73,545 |
| Countries by Official Language | 0 | - | 4.95 | 192,670 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,993 |
| Countries in their Native Language | 0 | - | 4.99 | 196,536 |
| Independence from Whom | 0 | - | 4.99 | 209,569 |
| Subdivisions by Country | 0 | - | 4.86 | 50,043 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,651 |
| Megadiverse Countries | 0 | - | 4.97 | 133,852 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,713 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,899 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,398 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,847 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,585 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,966 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,688 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,101 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,197 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,729 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,463 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,387 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,460 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,477 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,640 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,997 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,425 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,269 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,233 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,924 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,889 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,593 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,809 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,010 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,215 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,906 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,292 |
| Widest Countries East to West | 0 | - | 4.92 | 128,558 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,204 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,148 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,540 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,653 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,566 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,985 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,042 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Airlines by Country | 0 | - | 4.52 | 134,742 |
| Countries with Double Letters | 0 | - | 4.97 | 93,288 |
| Countries that End in N | 0 | - | 4.94 | 156,347 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,571 |
| Countries with Six Letters | 0 | - | 4.93 | 210,260 |
| Countries with W | 0 | - | 4.97 | 158,157 |
| Countries with Z | 0 | - | 4.98 | 287,738 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,474 |
| Countries That End in U | 0 | - | 4.95 | 119,477 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,441 |
| Countries that End in O | 0 | - | 4.92 | 158,506 |
| Countries that End in R | 0 | - | 4.87 | 118,238 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,834 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,925 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,240 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,426 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,756 |
| Countries That End in Y | 0 | - | 4.90 | 185,176 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,262 |
