| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,958 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,494 |
| World's Busiest Airports | 0 | - | 4.95 | 225,218 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,900 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,128,567 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,856 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,434 |
| Top World Languages | 0 | - | 4.92 | 816,691 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,113 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,589 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,055 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,256 |
| Cities by Airports | 0 | - | 4.49 | 88,475 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,013 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,492 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,935 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,123 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,769 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,927 |
| World Currency Quiz | 0 | - | 4.92 | 300,212 |
| Boundary Waters | 0 | - | 4.92 | 88,198 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,937 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,606 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,550 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,929 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,466 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,801 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,836 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,841 |
| Landlocked Countries | 0 | - | 4.99 | 416,209 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,783 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,338 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,224 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,486 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,310 |
| World Capitals Quiz | 0 | - | 5.00 | 5,047,628 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,713 |
| Himalayan Countries | 0 | - | 4.95 | 136,319 |
| Andean Countries | 0 | - | 4.95 | 83,383 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,644 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,873 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,341 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,947 |
| Danube Countries | 0 | - | 4.97 | 71,350 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,140 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,809 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,067 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,013 |
| European Landlocked Countries | 0 | - | 4.99 | 146,075 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,687 |
| Countries with the Most Species | 0 | - | 4.99 | 99,507 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,837 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,310 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,484 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,125 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,778 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,148 |
| 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 | 94,862 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,793 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,222 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,684 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,716 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,216 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,932 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,965 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,762 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,295 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,336 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,187 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,685 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,956 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,966 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,626 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,864 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,398 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,148 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,746 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,459 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,788 |
| Largest Countries By Category | 0 | - | 4.97 | 157,197 |
| Countries by Countries | 0 | - | 4.96 | 62,553 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,066 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,042 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,737,542 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,986 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,612 |
| Demonyms Quiz | 0 | - | 4.15 | 184,964 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,313 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,124 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,823 |
| Longest International Borders | 0 | - | 4.99 | 264,246 |
| Countries with Three Borders | 0 | - | 4.96 | 36,326 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,761 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,842 |
| Demonym of Every Country | 0 | - | 4.91 | 58,879 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,488 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,576,805 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,630 |
| Island Countries | 0 | - | 4.99 | 708,666 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,820 |
| Northernmost Countries | 0 | - | 4.99 | 359,138 |
| Countries of South America | 0 | - | 5.00 | 919,067 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,887 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,214 |
| "Land" Countries | 0 | - | 4.98 | 334,313 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,369 |
| Airline Logos | 0 | - | 4.45 | 140,234 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,364 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,831 |
| All Country Flags of the World | 0 | - | 5.00 | 3,625,718 |
| Foods of the World by Description | 0 | - | 4.18 | 45,970 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,253 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,242 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,284 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,675 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,157 |
| Countries with Megacities | 0 | - | 4.99 | 248,694 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,022 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,478 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,391 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,427 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,530 |
| 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 | 135,386 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,507 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,003 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,998 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,227 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,073 |
| Countries by Capital City | 0 | - | 5.00 | 67,370 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,679 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,202 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,538 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,642 |
| Moved Capital Cities | 0 | - | 4.96 | 73,842 |
| Countries by Official Language | 0 | - | 4.95 | 193,872 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,344 |
| Countries in their Native Language | 0 | - | 4.99 | 197,511 |
| Independence from Whom | 0 | - | 4.99 | 210,433 |
| Subdivisions by Country | 0 | - | 4.86 | 50,176 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,250 |
| Megadiverse Countries | 0 | - | 4.96 | 134,510 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,708 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,060 |
| 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 | 162,358 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,183 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,500 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,514 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,347 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,797 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,101 |
| 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 | 74,831 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,181 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,406 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,659 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,979 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,618 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,341 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,585 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,220 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,409 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,589 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,125 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,608 |
| Widest Countries East to West | 0 | - | 4.92 | 129,104 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,317 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,594 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,873 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,922 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,941 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,318 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,011 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,659 |
| Airlines by Country | 0 | - | 4.52 | 135,022 |
| Countries with Double Letters | 0 | - | 4.96 | 93,839 |
| Countries that End in N | 0 | - | 4.94 | 157,276 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,242 |
| Countries with Six Letters | 0 | - | 4.93 | 210,865 |
| Countries with W | 0 | - | 4.97 | 158,530 |
| Countries with Z | 0 | - | 4.98 | 288,426 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,869 |
| Countries That End in U | 0 | - | 4.95 | 119,670 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,033 |
| Countries that End in O | 0 | - | 4.92 | 158,709 |
| Countries that End in R | 0 | - | 4.87 | 118,421 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,975 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,598 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,651 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,735 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,305 |
| Countries That End in Y | 0 | - | 4.90 | 185,331 |
