| Airport Codes Quiz #1 | 0 | - | 4.81 | 214,142 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,686 |
| World's Busiest Airports | 0 | - | 4.96 | 228,939 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,071 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,168,016 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,942 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,824 |
| Top World Languages | 0 | - | 4.92 | 817,411 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,220 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,675 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,192 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,317 |
| Cities by Airports | 0 | - | 4.49 | 88,513 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,165 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,615 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,111 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,177 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,812 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,978 |
| World Currency Quiz | 0 | - | 4.92 | 300,572 |
| Boundary Waters | 0 | - | 4.92 | 88,234 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,969 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,656 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,622 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,962 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,507 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,835 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,894 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,851 |
| Landlocked Countries | 0 | - | 4.99 | 416,713 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,796 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,375 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,291 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,545 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,356 |
| World Capitals Quiz | 0 | - | 5.00 | 5,050,969 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,962 |
| Himalayan Countries | 0 | - | 4.95 | 136,525 |
| Andean Countries | 0 | - | 4.95 | 83,503 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,764 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,020 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,433 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,032 |
| Danube Countries | 0 | - | 4.97 | 71,437 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,221 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,852 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,168 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,144 |
| European Landlocked Countries | 0 | - | 4.99 | 146,136 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,773 |
| Countries with the Most Species | 0 | - | 4.99 | 101,713 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,906 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,333 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,511 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,162 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,811 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,194 |
| Countries in the Alps | 0 | - | 4.86 | 117,338 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,938 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,911 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,912 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,255 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,746 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,831 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,256 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,995 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,996 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,809 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,332 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,369 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,205 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,730 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,002 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,010 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,725 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,897 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,433 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,253 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,041 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,577 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,832 |
| Largest Countries By Category | 0 | - | 4.97 | 157,265 |
| Countries by Countries | 0 | - | 4.96 | 62,594 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,082 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,087 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,954 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,077 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,639 |
| Demonyms Quiz | 0 | - | 4.15 | 184,998 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,324 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,264 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,854 |
| Longest International Borders | 0 | - | 4.99 | 264,307 |
| Countries with Three Borders | 0 | - | 4.96 | 36,347 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,780 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,875 |
| Demonym of Every Country | 0 | - | 4.91 | 58,922 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,900 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,957 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,843 |
| Island Countries | 0 | - | 4.99 | 708,835 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,419 |
| Northernmost Countries | 0 | - | 4.99 | 359,405 |
| Countries of South America | 0 | - | 5.00 | 919,758 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,790 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,858,938 |
| "Land" Countries | 0 | - | 4.98 | 334,623 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,476 |
| Airline Logos | 0 | - | 4.45 | 140,298 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,591 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,157 |
| All Country Flags of the World | 0 | - | 5.00 | 3,630,625 |
| Foods of the World by Description | 0 | - | 4.18 | 45,982 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,264 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,249 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,026 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,869 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,300 |
| Countries with Megacities | 0 | - | 4.99 | 248,981 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,149 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,555 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,500 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,515 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,112 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,065 |
| Cities by Famous Street | 0 | - | 3.96 | 48,283 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,096 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,469 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,608 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,057 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,066 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,326 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,183 |
| Countries by Capital City | 0 | - | 5.00 | 67,486 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,751 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,254 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,746 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,706 |
| Moved Capital Cities | 0 | - | 4.96 | 73,890 |
| Countries by Official Language | 0 | - | 4.95 | 194,020 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,594 |
| Countries in their Native Language | 0 | - | 4.99 | 197,639 |
| Independence from Whom | 0 | - | 4.99 | 210,819 |
| Subdivisions by Country | 0 | - | 4.86 | 50,202 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,338 |
| Megadiverse Countries | 0 | - | 4.96 | 134,545 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,842 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,077 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,633 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,451 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,222 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,602 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,551 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,373 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,807 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,192 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,581 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,688 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,646 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,861 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,204 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,583 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,704 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,068 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,673 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,401 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,722 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,271 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,469 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,632 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,151 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,640 |
| Widest Countries East to West | 0 | - | 4.92 | 129,140 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,329 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,661 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,923 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,960 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,984 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,361 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,103 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,678 |
| Airlines by Country | 0 | - | 4.52 | 135,060 |
| Countries with Double Letters | 0 | - | 4.96 | 94,148 |
| Countries that End in N | 0 | - | 4.95 | 165,972 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,595 |
| Countries with Six Letters | 0 | - | 4.93 | 211,148 |
| Countries with W | 0 | - | 4.97 | 158,819 |
| Countries with Z | 0 | - | 4.98 | 288,782 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,041 |
| Countries That End in U | 0 | - | 4.95 | 119,923 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,165 |
| Countries that End in O | 0 | - | 4.92 | 158,867 |
| Countries that End in R | 0 | - | 4.87 | 118,510 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,290 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,758 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,743 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,814 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,381 |
| Countries That End in Y | 0 | - | 4.90 | 185,426 |
