| Airport Codes Quiz #1 | 0 | - | 4.82 | 212,965 |
| Busiest Airports in Europe | 0 | - | 4.91 | 144,846 |
| World's Busiest Airports | 0 | - | 4.94 | 210,220 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,041 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,880,037 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,126 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,505 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,352 |
| Top World Languages | 0 | - | 4.92 | 812,478 |
| 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 | 87,765 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,187 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 123,754 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 118,832 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,937 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,675 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,530 |
| World Currency Quiz | 0 | - | 4.92 | 298,091 |
| 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 | 95,218 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,964 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,762 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,219 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,564 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,389 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,773 |
| Landlocked Countries | 0 | - | 4.99 | 413,169 |
| 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 | 164,523 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,883 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,105 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,298 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,387 |
| Himalayan Countries | 0 | - | 4.95 | 135,160 |
| Andean Countries | 0 | - | 4.94 | 82,733 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,149 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,082 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,820 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,514 |
| Danube Countries | 0 | - | 4.97 | 71,033 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,696 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,488 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,366 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,284 |
| European Landlocked Countries | 0 | - | 4.99 | 145,701 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,113 |
| Countries with the Most Species | 0 | - | 4.99 | 95,216 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,263 |
| 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 | 72,541 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,901 |
| Countries in the Alps | 0 | - | 4.87 | 116,747 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,795 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,514 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,161 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,974 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,366 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,099 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,959 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,512 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,713 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,901 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,008 |
| 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 | 103,398 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,703 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,710 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,964 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,595 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,221 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,722 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,012 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,476 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,567 |
| Largest Countries By Category | 0 | - | 4.97 | 156,677 |
| Countries by Countries | 0 | - | 4.96 | 62,213 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,708 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,562 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,661 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,471 |
| Demonyms Quiz | 0 | - | 4.15 | 184,810 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,222 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,264 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,582 |
| Longest International Borders | 0 | - | 4.99 | 263,444 |
| Countries with Three Borders | 0 | - | 4.96 | 36,155 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,580 |
| 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 | 323,354 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,953 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,966 |
| Island Countries | 0 | - | 4.99 | 707,400 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,829 |
| Northernmost Countries | 0 | - | 4.99 | 357,452 |
| Countries of South America | 0 | - | 5.00 | 913,947 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,316 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,495 |
| "Land" Countries | 0 | - | 4.98 | 333,510 |
| World's Biggest Airlines | 0 | - | 4.44 | 123,780 |
| Airline Logos | 0 | - | 4.45 | 139,892 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,964 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,051 |
| All Country Flags of the World | 0 | - | 5.00 | 3,597,574 |
| 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 | 1,434,165 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,403 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,960 |
| Countries with Megacities | 0 | - | 4.99 | 246,417 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,875 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,776 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,336 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,733 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,764 |
| 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 | 134,670 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,867 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,607 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,554 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,527 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,315 |
| Countries by Capital City | 0 | - | 5.00 | 66,540 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,266 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,852 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,142 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,368 |
| Moved Capital Cities | 0 | - | 4.96 | 73,545 |
| Countries by Official Language | 0 | - | 4.95 | 192,666 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,987 |
| Countries in their Native Language | 0 | - | 4.99 | 196,532 |
| Independence from Whom | 0 | - | 4.99 | 209,563 |
| Subdivisions by Country | 0 | - | 4.86 | 50,043 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,649 |
| Megadiverse Countries | 0 | - | 4.97 | 133,852 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,708 |
| 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 | 161,584 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,965 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,673 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,099 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,197 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,728 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,461 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,385 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,458 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,476 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,639 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,997 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,422 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,269 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,230 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,922 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,888 |
| 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 | 98,214 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,906 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,290 |
| Widest Countries East to West | 0 | - | 4.92 | 128,556 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,204 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,146 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,539 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,652 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,562 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,982 |
| 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 | 134,741 |
| Countries with Double Letters | 0 | - | 4.97 | 93,288 |
| Countries that End in N | 0 | - | 4.94 | 156,343 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,564 |
| Countries with Six Letters | 0 | - | 4.93 | 210,257 |
| Countries with W | 0 | - | 4.97 | 158,157 |
| Countries with Z | 0 | - | 4.98 | 287,736 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,470 |
| 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 | 154,833 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,924 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,239 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,425 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,743 |
| Countries That End in Y | 0 | - | 4.90 | 185,175 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,258 |
