| Countries of the World Quiz | 0 | - | 5.00 | 47,138,413 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,885 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,536 |
| Top World Languages | 0 | - | 4.92 | 816,862 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,084 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,278 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,554 |
| World's Busiest Airports | 0 | - | 4.95 | 226,684 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,086 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,956 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,523 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,998 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 214,002 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,142 |
| Airline Logos | 0 | - | 4.45 | 140,245 |
| Boundary Waters | 0 | - | 4.92 | 88,207 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,946 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,622 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,941 |
| World Currency Quiz | 0 | - | 4.92 | 300,310 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,844 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,570 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,939 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,479 |
| Busiest Airports in the United States | 0 | - | 4.55 | 135,147 |
| Landlocked Countries | 0 | - | 4.99 | 416,342 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,806 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,845 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,348 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,249 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,501 |
| Cities by Airports | 0 | - | 4.49 | 88,485 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,320 |
| World Capitals Quiz | 0 | - | 5.00 | 5,048,425 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,781 |
| Himalayan Countries | 0 | - | 4.95 | 136,375 |
| Andean Countries | 0 | - | 4.95 | 83,412 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,677 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,901 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,366 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,968 |
| Danube Countries | 0 | - | 4.97 | 71,366 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,157 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,821 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,091 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,043 |
| European Landlocked Countries | 0 | - | 4.99 | 146,097 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,707 |
| Countries with the Most Species | 0 | - | 4.99 | 100,476 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,853 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,314 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,490 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,132 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,788 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,158 |
| Countries in the Alps | 0 | - | 4.86 | 117,292 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,924 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,872 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,818 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,233 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,710 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,774 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,223 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,950 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,972 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,773 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,309 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,340 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,190 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,698 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,969 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,979 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,648 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,869 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,405 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,200 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,818 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,487 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,794 |
| Largest Countries By Category | 0 | - | 4.97 | 157,213 |
| Countries by Countries | 0 | - | 4.96 | 62,565 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,069 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,056 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,738,312 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,785 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,000 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,613 |
| Demonyms Quiz | 0 | - | 4.15 | 184,972 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,318 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,147 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,829 |
| Longest International Borders | 0 | - | 4.99 | 264,254 |
| Countries with Three Borders | 0 | - | 4.96 | 36,334 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,766 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,852 |
| Demonym of Every Country | 0 | - | 4.91 | 58,888 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,243 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,574 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,123 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,689 |
| Island Countries | 0 | - | 4.99 | 708,711 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,951 |
| Northernmost Countries | 0 | - | 4.99 | 359,211 |
| Countries of South America | 0 | - | 5.00 | 919,234 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,100 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,623 |
| "Land" Countries | 0 | - | 4.98 | 334,423 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,781 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,394 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,256 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,185 |
| Countries with Megacities | 0 | - | 4.99 | 248,761 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,044 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,500 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,416 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,444 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,057 |
| Cities by Famous Street | 0 | - | 3.96 | 48,283 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,095 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,403 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,524 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,021 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,012 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,246 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,101 |
| Countries by Capital City | 0 | - | 5.00 | 67,398 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,694 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,217 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,655 |
| Moved Capital Cities | 0 | - | 4.96 | 73,852 |
| Countries by Official Language | 0 | - | 4.95 | 193,914 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,405 |
| Countries in their Native Language | 0 | - | 4.99 | 197,550 |
| Independence from Whom | 0 | - | 4.99 | 210,547 |
| Subdivisions by Country | 0 | - | 4.86 | 50,183 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,269 |
| Megadiverse Countries | 0 | - | 4.96 | 134,517 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,749 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,066 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,615 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,941 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,410 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,193 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,522 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,522 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,354 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,801 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,120 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,569 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,668 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,630 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,836 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,184 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,674 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,439 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,667 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,004 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,630 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,363 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,613 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,228 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,426 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,598 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,131 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,617 |
| Widest Countries East to West | 0 | - | 4.92 | 129,119 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,320 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,610 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,901 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,932 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,951 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,328 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,033 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,663 |
| Countries with Double Letters | 0 | - | 4.96 | 93,930 |
| Countries that End in N | 0 | - | 4.94 | 161,311 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,357 |
| Countries with Six Letters | 0 | - | 4.93 | 210,953 |
| Countries with W | 0 | - | 4.97 | 158,630 |
| Countries with Z | 0 | - | 4.98 | 288,551 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,919 |
| Countries That End in U | 0 | - | 4.95 | 119,778 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,069 |
| Countries that End in O | 0 | - | 4.92 | 158,770 |
| Countries that End in R | 0 | - | 4.87 | 118,455 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,989 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,639 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,681 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,764 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,330 |
| Countries That End in Y | 0 | - | 4.90 | 185,362 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,771 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,027 |
| Countries that End in I | 0 | - | 4.94 | 134,626 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,639 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,379 |
| Countries That End in NIA | 0 | - | 4.92 | 109,259 |
| Countries That End in BIA | 0 | - | 4.93 | 148,494 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,375 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,729 |
