| Airport Codes Quiz #1 | 0 | - | 4.81 | 216,544 |
| Busiest Airports in Europe | 0 | - | 4.91 | 147,039 |
| World's Busiest Airports | 0 | - | 4.96 | 237,267 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,180 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,876,240 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,800 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,676 |
| Top World Languages | 0 | - | 4.92 | 829,724 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,143 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,752 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,352 |
| Cities by Airports | 0 | - | 4.47 | 104,025 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,797 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,803 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,235 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,572 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,111 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,011 |
| World Currency Quiz | 0 | - | 4.92 | 306,721 |
| Boundary Waters | 0 | - | 4.92 | 88,762 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,411 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,697 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,681 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,505 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,128 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,533 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,077 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,946 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,972 |
| Landlocked Countries | 0 | - | 4.99 | 425,816 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,102 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,924 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,976 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,003 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,935 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,858 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,243 |
| Himalayan Countries | 0 | - | 4.93 | 140,228 |
| Andean Countries | 0 | - | 4.94 | 85,447 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,597 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,987 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,157 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,428 |
| Danube Countries | 0 | - | 4.97 | 72,383 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,587 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,837 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,115 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,604 |
| European Landlocked Countries | 0 | - | 4.99 | 147,600 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,297 |
| Countries with the Most Species | 0 | - | 4.99 | 103,561 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,402 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,775 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,886 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,838 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,575 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,014 |
| Countries in the Alps | 0 | - | 4.87 | 118,770 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,308 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,623 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,855 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,960 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,022 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,948 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,249 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,399 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,860 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,418 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,177 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,868 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,743 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,558 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,789 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,886 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,832 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,608 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 70,294 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,664 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,699 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,141 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,503 |
| Largest Countries By Category | 0 | - | 4.97 | 158,862 |
| Countries by Countries | 0 | - | 4.96 | 63,638 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,400 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,104 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,804,197 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,454 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,986 |
| Demonyms Quiz | 0 | - | 4.15 | 185,536 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,614 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,081 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,573 |
| Longest International Borders | 0 | - | 4.99 | 265,809 |
| Countries with Three Borders | 0 | - | 4.96 | 36,774 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,349 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,493 |
| Demonym of Every Country | 0 | - | 4.90 | 61,475 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,386 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,447 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,681 |
| Island Countries | 0 | - | 4.99 | 712,556 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,681 |
| Northernmost Countries | 0 | - | 4.99 | 363,982 |
| Countries of South America | 0 | - | 5.00 | 932,631 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,282 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,130 |
| "Land" Countries | 0 | - | 4.98 | 338,374 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,200 |
| Airline Logos | 0 | - | 4.45 | 141,431 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,588 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,978 |
| All Country Flags of the World | 0 | - | 5.00 | 3,713,427 |
| Foods of the World by Description | 0 | - | 4.18 | 46,131 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,727 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,393 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,083 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,479 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,146 |
| Countries with Megacities | 0 | - | 4.99 | 267,096 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,836 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,129 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,150 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,235 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,526 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,184 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,181 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,299 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,346 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,972 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,197 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,216 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,136 |
| Countries by Capital City | 0 | - | 5.00 | 69,381 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,847 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,226 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,840 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,806 |
| Moved Capital Cities | 0 | - | 4.96 | 74,646 |
| Countries by Official Language | 0 | - | 4.95 | 195,989 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,624 |
| Countries in their Native Language | 0 | - | 4.99 | 199,735 |
| Independence from Whom | 0 | - | 4.99 | 213,057 |
| Subdivisions by Country | 0 | - | 4.87 | 50,616 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,436 |
| Megadiverse Countries | 0 | - | 4.96 | 135,279 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,939 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,542 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,657 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,228 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,015 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,850 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,110 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,569 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,045 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,258 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,526 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,376 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,442 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,143 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,581 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,846 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,353 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,715 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,248 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,080 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,561 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,568 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,430 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,530 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,729 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,689 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,712 |
| Widest Countries East to West | 0 | - | 4.92 | 130,457 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,598 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,256 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,518 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,064 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,970 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,485 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,502 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,890 |
| Airlines by Country | 0 | - | 4.52 | 135,834 |
| Countries with Double Letters | 0 | - | 4.96 | 97,074 |
| Countries that End in N | 0 | - | 4.95 | 171,931 |
| Countries with Five Letters | 0 | - | 4.96 | 283,766 |
| Countries with Six Letters | 0 | - | 4.94 | 214,468 |
| Countries with W | 0 | - | 4.96 | 160,935 |
| Countries with Z | 0 | - | 4.98 | 292,446 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,284 |
| Countries That End in U | 0 | - | 4.95 | 121,191 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,105 |
| Countries that End in O | 0 | - | 4.92 | 160,216 |
| Countries that End in R | 0 | - | 4.87 | 119,183 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,938 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,832 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,152 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,828 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,762 |
| Countries That End in Y | 0 | - | 4.91 | 186,089 |
