| Busiest Airports in Europe | 0 | - | 4.91 | 144,989 |
| World's Busiest Airports | 0 | - | 4.94 | 210,748 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,975,473 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,285 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,297 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,607 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,189 |
| Top World Languages | 0 | - | 4.92 | 814,006 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,618 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,038 |
| Cities by Airports | 0 | - | 4.49 | 88,309 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,293 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,398 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,015 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,264 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,987 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,706 |
| Boundary Waters | 0 | - | 4.92 | 88,080 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,850 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,385 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,666 |
| World Currency Quiz | 0 | - | 4.92 | 298,941 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,787 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,072 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,816 |
| Largest Countries with Little Tourism | 0 | - | 4.74 | 61,310 |
| Landlocked Countries | 0 | - | 4.99 | 414,306 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,644 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,568 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,216 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,835 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,177 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,168 |
| World Capitals Quiz | 0 | - | 5.00 | 5,036,026 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,870 |
| Himalayan Countries | 0 | - | 4.95 | 135,602 |
| Andean Countries | 0 | - | 4.94 | 82,955 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,321 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,360 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,022 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,693 |
| Danube Countries | 0 | - | 4.97 | 71,144 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,847 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,608 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,624 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,540 |
| European Landlocked Countries | 0 | - | 4.99 | 145,841 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,307 |
| Countries with the Most Species | 0 | - | 4.99 | 95,285 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,456 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,223 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,392 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,995 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,634 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,007 |
| Countries in the Alps | 0 | - | 4.86 | 116,937 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,835 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,641 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,389 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,071 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,480 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,256 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,064 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,665 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,820 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,537 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,122 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,218 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,085 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,508 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,804 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,797 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,211 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,714 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,291 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,870 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,656 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,899 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,650 |
| Largest Countries By Category | 0 | - | 4.97 | 156,873 |
| Countries by Countries | 0 | - | 4.96 | 62,328 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,988 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,835 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,722,512 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,725 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,786 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,514 |
| Demonyms Quiz | 0 | - | 4.15 | 184,874 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,254 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,623 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,681 |
| Longest International Borders | 0 | - | 4.99 | 263,929 |
| Countries with Three Borders | 0 | - | 4.96 | 36,230 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,640 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,723 |
| Demonym of Every Country | 0 | - | 4.91 | 58,715 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,220 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,835 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,572,626 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,377 |
| Island Countries | 0 | - | 4.99 | 707,882 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,398 |
| Northernmost Countries | 0 | - | 4.99 | 358,092 |
| Countries of South America | 0 | - | 5.00 | 915,975 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,022 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,738 |
| "Land" Countries | 0 | - | 4.98 | 333,830 |
| World's Biggest Airlines | 0 | - | 4.44 | 124,000 |
| Airline Logos | 0 | - | 4.45 | 140,030 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,186 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,615 |
| Countries with Megacities | 0 | - | 4.99 | 247,530 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,446 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,194 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,861 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,121 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,037 |
| Cities by Famous Street | 0 | - | 3.96 | 48,256 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,072 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,947 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,103 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,743 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,699 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,782 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,606 |
| Countries by Capital City | 0 | - | 5.00 | 66,821 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,425 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,982 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,480 |
| Moved Capital Cities | 0 | - | 4.96 | 73,657 |
| Countries by Official Language | 0 | - | 4.95 | 192,920 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,336 |
| Countries in their Native Language | 0 | - | 4.99 | 196,774 |
| Independence from Whom | 0 | - | 4.99 | 209,869 |
| Subdivisions by Country | 0 | - | 4.86 | 50,102 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,885 |
| Megadiverse Countries | 0 | - | 4.97 | 133,960 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,940 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,951 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,464 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,875 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,748 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,047 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,172 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,212 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,245 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,759 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,726 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,453 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,545 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,534 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,728 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,055 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,255 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,779 |
| World Map Quiz | 0 | - | 4.81 | 63,633 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,402 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,514 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,300 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,043 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,966 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,953 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,139 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,358 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,990 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,399 |
| Widest Countries East to West | 0 | - | 4.92 | 128,767 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,237 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,316 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,601 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,744 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,696 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,121 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 71,230 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,608 |
| Countries with Double Letters | 0 | - | 4.96 | 93,518 |
| Countries that End in N | 0 | - | 4.94 | 157,001 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,820 |
| Countries with Six Letters | 0 | - | 4.93 | 210,499 |
| Countries with W | 0 | - | 4.97 | 158,318 |
| Countries with Z | 0 | - | 4.98 | 288,034 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,635 |
| Countries That End in U | 0 | - | 4.95 | 119,560 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,708 |
| Countries that End in O | 0 | - | 4.92 | 158,597 |
| Countries that End in R | 0 | - | 4.87 | 118,312 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,882 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,224 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,422 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,558 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,102 |
| Countries That End in Y | 0 | - | 4.90 | 185,240 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,482 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,780 |
| Countries that End in I | 0 | - | 4.94 | 134,479 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,306 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,241 |
| Countries That End in NIA | 0 | - | 4.92 | 109,058 |
| Countries That End in BIA | 0 | - | 4.92 | 147,770 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,149 |
