| Airport Codes Quiz #1 | 0 | - | 4.82 | 187,731 |
| Europe's Busiest Airports | 0 | - | 4.91 | 131,742 |
| World's Busiest Airports | 0 | - | 4.94 | 187,517 |
| Countries with the Most Airports | 0 | - | 4.96 | 78,911 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,391,637 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,188 |
| Top World Languages | 0 | - | 4.91 | 697,690 |
| Busiest Airports in the United States | 0 | - | 4.55 | 126,040 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 81,916 |
| Places in their Native Language #1 | 0 | - | 4.87 | 208,710 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,239 |
| Cities by Airports | 0 | - | 4.51 | 80,823 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 97,604 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.96 | 101,768 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 89,638 |
| Busiest Air Routes in the World | 0 | - | 4.52 | 35,091 |
| Airports Named for People #1 | 0 | - | 4.45 | 53,061 |
| Countries by Airline Passengers | 0 | - | 4.91 | 48,791 |
| World Currency Quiz | 0 | - | 4.92 | 244,730 |
| Boundary Waters | 0 | - | 4.93 | 80,410 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 73,699 |
| Lonely Planet Top 200 Cities | 0 | - | 4.66 | 208,865 |
| Cities with the Most International Tourists | 0 | - | 4.46 | 49,580 |
| Largest Countries with Little Tourism | 0 | - | 4.71 | 54,004 |
| Most Hashtagged Cities on Instagram | 0 | - | 4.45 | 32,311 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 94,732 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 75,617 |
| Tourist Route of Europe | 0 | - | 4.22 | 41,703 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.82 | 29,755 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 316,643 |
| U.S. National Parks Map Quiz | 0 | - | 4.51 | 51,520 |
| World Geography on a Map #1 | 0 | - | 4.93 | 66,759 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,031 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,719 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.33 | 91,448 |
| World Capitals Quiz | 0 | - | 5.00 | 4,453,392 |
| Countries on the Equator | 0 | - | 4.82 | 131,872 |
| Members of the Arab League | 0 | - | 4.81 | 58,875 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,934 |
| Himalayan Countries | 0 | - | 4.95 | 102,228 |
| Andean Countries | 0 | - | 4.90 | 56,785 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,604 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,499 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,801 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,465 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,660 |
| Danube Countries | 0 | - | 4.97 | 56,325 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,347 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,560 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,194 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,710 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,297 |
| European Landlocked Countries | 0 | - | 4.99 | 114,795 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,662 |
| Countries with the Most Species | 0 | - | 4.99 | 89,058 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,725 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,404 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,778 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,698 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,067 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,418 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,618 |
| Countries in the Alps | 0 | - | 4.82 | 101,712 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.23 | 76,020 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,526 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,605 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,073 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,639 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,281 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,798 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,977 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,706 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,030 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,080 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,845 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,303 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,377 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,874 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,434 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,902 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,391 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,903 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,890 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,191 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,124 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,904 |
| Largest Countries By Category | 0 | - | 4.96 | 143,746 |
| Countries by Countries | 0 | - | 4.96 | 53,987 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,009,881 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,203 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 133,244 |
| Western Europe Map Quiz | 0 | - | 4.86 | 88,786 |
| Demonyms Quiz | 0 | - | 4.12 | 178,424 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,220 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 179,937 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 110,150 |
| Longest International Borders | 0 | - | 4.99 | 232,576 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 35,336 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 39,241 |
| Demonym of Every Country | 0 | - | 4.91 | 48,720 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,367,104 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,219 |
| Island Countries Quiz | 0 | - | 4.99 | 637,646 |
| Biggest Countries by Area | 0 | - | 5.00 | 923,594 |
| Northernmost Countries | 0 | - | 4.99 | 325,073 |
| Countries of South America | 0 | - | 5.00 | 782,324 |
| Countries of Oceania | 0 | - | 5.00 | 880,285 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,102,163 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,548,315 |
| Airline Logos | 0 | - | 4.43 | 126,312 |
| Europe Map Quiz | 0 | - | 5.00 | 4,250,842 |
| Foods of the World Quiz | 0 | - | 4.17 | 44,174 |
| Countries with Three Borders | 0 | - | 4.96 | 30,739 |
| Analogies of Countries #1 | 0 | - | 4.84 | 49,773 |
| Five Letter Geography #4 | 0 | - | 4.83 | 64,921 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,727 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,279 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,944 |
| Countries with Megacities | 0 | - | 4.99 | 194,418 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,160 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,711 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,489 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,580 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,691 |
| Biggest Cities in the World | 0 | - | 4.89 | 677,487 |
| Cities by Tourist Attraction #1 | 0 | - | 3.64 | 79,959 |
| Cities by Famous Street | 0 | - | 3.99 | 47,361 |
| Global Cities on a World Map | 0 | - | 4.93 | 90,566 |
| Northernmost Capital Cities | 0 | - | 4.98 | 92,900 |
| Most Remote Capital Cities | 0 | - | 4.90 | 42,992 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 33,615 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 89,545 |
| Same Letter Country and Capital | 0 | - | 4.99 | 125,756 |
| Countries by Capital City | 0 | - | 4.99 | 48,067 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,196 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 92,944 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 72,085 |
| Moved Capital Cities | 0 | - | 4.94 | 51,843 |
| Countries by Official Language | 0 | - | 4.95 | 153,295 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,277 |
| Countries in their Native Language | 0 | - | 4.98 | 176,807 |
| Independence from Whom | 0 | - | 4.99 | 182,672 |
| Subdivisions by Country | 0 | - | 4.82 | 46,145 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,709 |
| Megadiverse Countries | 0 | - | 4.96 | 124,640 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,761 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,914 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,083 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,672 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,557 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,450 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,237 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,433 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,939 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,727 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,744 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,286 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,457 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,030,713 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,648 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,148 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,000 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,939 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,294 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,484 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,769 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,329 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,207 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,740 |
| Widest Countries East to West | 0 | - | 4.93 | 118,413 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,661 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,769 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,062 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,695 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,553 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,426 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,234 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,821 |
| Airlines by Country | 0 | - | 4.51 | 124,510 |
| Countries with Double Letters | 0 | - | 4.96 | 66,413 |
| Countries that End in N | 0 | - | 4.94 | 130,798 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,304 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,142 |
| Countries with W | 0 | - | 4.97 | 121,107 |
| Countries with Z | 0 | - | 4.98 | 241,770 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,276 |
| Countries That End in U | 0 | - | 4.94 | 106,573 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.96 | 87,980 |
| Countries that End in O | 0 | - | 4.92 | 146,208 |
| Countries that End in R | 0 | - | 4.85 | 95,991 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,764 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,315 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,735 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,473 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,401 |
| Countries That End in Y | 0 | - | 4.90 | 160,728 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,477 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,678 |
| Countries that End in I | 0 | - | 4.92 | 114,098 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,266 |
