| Airport Codes Quiz #1 | 0 | - | 4.82 | 212,979 |
| Busiest Airports in Europe | 0 | - | 4.91 | 144,852 |
| World's Busiest Airports | 0 | - | 4.94 | 210,236 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,053 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,883,690 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,129 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,509 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,420 |
| Top World Languages | 0 | - | 4.92 | 812,539 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,750 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,342 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,929 |
| Cities by Airports | 0 | - | 4.49 | 87,767 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,196 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,766 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 118,846 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,939 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,677 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,534 |
| World Currency Quiz | 0 | - | 4.92 | 298,138 |
| Boundary Waters | 0 | - | 4.92 | 88,023 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,794 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,224 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,965 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,765 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,224 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,568 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,399 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,774 |
| Landlocked Countries | 0 | - | 4.99 | 413,205 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,676 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,128 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,531 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,888 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,108 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,548 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,396 |
| Himalayan Countries | 0 | - | 4.95 | 135,175 |
| Andean Countries | 0 | - | 4.94 | 82,740 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,156 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,089 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,824 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,523 |
| Danube Countries | 0 | - | 4.97 | 71,035 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,701 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,492 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,377 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,297 |
| European Landlocked Countries | 0 | - | 4.99 | 145,706 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,125 |
| Countries with the Most Species | 0 | - | 4.99 | 95,219 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,272 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,190 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,352 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,933 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,544 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,907 |
| Countries in the Alps | 0 | - | 4.87 | 116,756 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,796 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,516 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,166 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,978 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,376 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,103 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,962 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,517 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,720 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,957 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,012 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,179 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,016 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,404 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,706 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,714 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,970 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,598 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,225 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,725 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,033 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,487 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,569 |
| Largest Countries By Category | 0 | - | 4.97 | 156,681 |
| Countries by Countries | 0 | - | 4.96 | 62,216 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,717 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,849 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,666 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,472 |
| Demonyms Quiz | 0 | - | 4.15 | 184,814 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,222 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,281 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,589 |
| Longest International Borders | 0 | - | 4.99 | 263,463 |
| Countries with Three Borders | 0 | - | 4.96 | 36,161 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,583 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,633 |
| Demonym of Every Country | 0 | - | 4.91 | 58,607 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,391 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,072 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,984 |
| Island Countries | 0 | - | 4.99 | 707,421 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,889 |
| Northernmost Countries | 0 | - | 4.99 | 357,477 |
| Countries of South America | 0 | - | 5.00 | 914,004 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,418 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,683 |
| "Land" Countries | 0 | - | 4.98 | 333,521 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,789 |
| Airline Logos | 0 | - | 4.45 | 139,896 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,111 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,292 |
| All Country Flags of the World | 0 | - | 5.00 | 3,597,962 |
| Foods of the World by Description | 0 | - | 4.18 | 45,931 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,147 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,205 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,236 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,419 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,970 |
| Countries with Megacities | 0 | - | 4.99 | 246,460 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,885 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,785 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,348 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,739 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,811 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,023 |
| 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 | 134,674 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,874 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,609 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,557 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,536 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,322 |
| Countries by Capital City | 0 | - | 5.00 | 66,546 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,275 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,856 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,174 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,372 |
| Moved Capital Cities | 0 | - | 4.96 | 73,546 |
| Countries by Official Language | 0 | - | 4.95 | 192,676 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,998 |
| Countries in their Native Language | 0 | - | 4.99 | 196,544 |
| Independence from Whom | 0 | - | 4.99 | 209,577 |
| Subdivisions by Country | 0 | - | 4.86 | 50,045 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,661 |
| Megadiverse Countries | 0 | - | 4.97 | 133,857 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,719 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,899 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,399 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,588 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,966 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,757 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,107 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,198 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,729 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,473 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,390 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,462 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,482 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,641 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,000 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,442 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,276 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,243 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,926 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,893 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,607 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,813 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,018 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,223 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,909 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,296 |
| Widest Countries East to West | 0 | - | 4.92 | 128,561 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,205 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,152 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,541 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,658 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,576 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,993 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,044 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Airlines by Country | 0 | - | 4.52 | 134,745 |
| Countries with Double Letters | 0 | - | 4.97 | 93,293 |
| Countries that End in N | 0 | - | 4.94 | 156,352 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,579 |
| Countries with Six Letters | 0 | - | 4.93 | 210,268 |
| Countries with W | 0 | - | 4.97 | 158,163 |
| Countries with Z | 0 | - | 4.98 | 287,746 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,480 |
| Countries That End in U | 0 | - | 4.95 | 119,480 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,446 |
| Countries that End in O | 0 | - | 4.92 | 158,507 |
| Countries that End in R | 0 | - | 4.87 | 118,240 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,838 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,930 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,247 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,433 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,804 |
| Countries That End in Y | 0 | - | 4.90 | 185,177 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,274 |
