| Airport Codes Quiz #1 | 0 | - | 4.82 | 216,965 |
| Busiest Airports in Europe | 0 | - | 4.91 | 147,118 |
| World's Busiest Airports | 0 | - | 4.96 | 237,614 |
| Countries with the Most Airports | 0 | - | 4.96 | 100,315 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,920,021 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,842 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,998 |
| Top World Languages | 0 | - | 4.92 | 830,489 |
| Busiest Airports in the United States | 0 | - | 4.54 | 136,194 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 97,871 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,480 |
| Cities by Airports | 0 | - | 4.48 | 104,093 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,914 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,949 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 123,422 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,597 |
| Airports Named for People #1 | 0 | - | 4.44 | 56,129 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,069 |
| World Currency Quiz | 0 | - | 4.92 | 307,103 |
| Boundary Waters | 0 | - | 4.92 | 88,798 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,430 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,757 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,745 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,518 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,160 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,582 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,152 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,014 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,981 |
| Landlocked Countries | 0 | - | 4.99 | 426,548 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 56,116 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,953 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,060 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,087 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,968 |
| World Capitals Quiz | 0 | - | 5.00 | 5,109,578 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,546 |
| Himalayan Countries | 0 | - | 4.93 | 140,482 |
| Andean Countries | 0 | - | 4.94 | 85,618 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,749 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,216 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,316 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,549 |
| Danube Countries | 0 | - | 4.97 | 72,471 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,681 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,901 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,264 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,737 |
| European Landlocked Countries | 0 | - | 4.99 | 147,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,397 |
| Countries with the Most Species | 0 | - | 4.99 | 103,605 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,510 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,791 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,913 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,876 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,616 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,071 |
| Countries in the Alps | 0 | - | 4.87 | 118,858 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 82,324 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,793 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,993 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,011 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,091 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,039 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,321 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,470 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,925 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,464 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,235 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,914 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,782 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,612 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,849 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,949 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,991 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,659 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,575 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,753 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,952 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,307 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,553 |
| Largest Countries By Category | 0 | - | 4.97 | 158,951 |
| Countries by Countries | 0 | - | 4.96 | 63,710 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,426 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,154 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,869 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,523 |
| Western Europe Map Quiz | 0 | - | 4.85 | 94,011 |
| Demonyms Quiz | 0 | - | 4.15 | 185,568 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,629 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,238 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,601 |
| Longest International Borders | 0 | - | 4.99 | 265,892 |
| Countries with Three Borders | 0 | - | 4.96 | 36,799 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,383 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,523 |
| Demonym of Every Country | 0 | - | 4.90 | 61,548 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,970 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,764 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,851 |
| Island Countries | 0 | - | 4.99 | 712,759 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,369 |
| Northernmost Countries | 0 | - | 4.99 | 364,286 |
| Countries of South America | 0 | - | 5.00 | 933,401 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,400 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,981 |
| "Land" Countries | 0 | - | 4.98 | 338,544 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,287 |
| Airline Logos | 0 | - | 4.45 | 141,487 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,268 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,224 |
| All Country Flags of the World | 0 | - | 5.00 | 3,718,581 |
| Foods of the World by Description | 0 | - | 4.18 | 46,150 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,751 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,400 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,977 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,705 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,316 |
| Countries with Megacities | 0 | - | 4.99 | 267,459 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,984 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,227 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,314 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,332 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,234 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,187 |
| Cities by Famous Street | 0 | - | 3.96 | 48,382 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,186 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,399 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,451 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,021 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,270 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,322 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,240 |
| Countries by Capital City | 0 | - | 5.00 | 69,503 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,923 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,281 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,114 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,878 |
| Moved Capital Cities | 0 | - | 4.96 | 74,691 |
| Countries by Official Language | 0 | - | 4.95 | 196,118 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,782 |
| Countries in their Native Language | 0 | - | 4.99 | 199,840 |
| Independence from Whom | 0 | - | 4.99 | 213,224 |
| Subdivisions by Country | 0 | - | 4.87 | 50,642 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,559 |
| Megadiverse Countries | 0 | - | 4.96 | 144,888 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,032 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,555 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,748 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,238 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,347 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,889 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,182 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,591 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,122 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,638 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,431 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,463 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,175 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,602 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,915 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,533 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,757 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,378 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,156 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,621 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,732 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,483 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,602 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,788 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,725 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,847 |
| Widest Countries East to West | 0 | - | 4.92 | 130,778 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,616 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,304 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,535 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,098 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,038 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,534 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,517 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,906 |
| Airlines by Country | 0 | - | 4.52 | 135,878 |
| Countries with Double Letters | 0 | - | 4.96 | 97,222 |
| Countries that End in N | 0 | - | 4.95 | 172,311 |
| Countries with Five Letters | 0 | - | 4.96 | 284,185 |
| Countries with Six Letters | 0 | - | 4.94 | 214,634 |
| Countries with W | 0 | - | 4.96 | 161,053 |
| Countries with Z | 0 | - | 4.98 | 292,617 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,391 |
| Countries That End in U | 0 | - | 4.95 | 121,248 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,203 |
| Countries that End in O | 0 | - | 4.92 | 160,268 |
| Countries that End in R | 0 | - | 4.87 | 119,216 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,979 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,966 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,226 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,880 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,809 |
| Countries That End in Y | 0 | - | 4.91 | 186,113 |
