| Countries of the World Quiz | 0 | - | 5.00 | 47,076,597 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,737 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,906 |
| Top World Languages | 0 | - | 4.92 | 815,780 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,886 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,189 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,233 |
| World's Busiest Airports | 0 | - | 4.95 | 216,101 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,618 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,625 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,331 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,692 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,706 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,060 |
| Airline Logos | 0 | - | 4.45 | 140,173 |
| Boundary Waters | 0 | - | 4.92 | 88,144 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,905 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,529 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,858 |
| World Currency Quiz | 0 | - | 4.92 | 299,755 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,819 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,453 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,882 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,402 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,958 |
| Landlocked Countries | 0 | - | 4.99 | 415,585 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,730 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,754 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,302 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,129 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,391 |
| Cities by Airports | 0 | - | 4.49 | 88,410 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,268 |
| World Capitals Quiz | 0 | - | 5.00 | 5,044,071 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,402 |
| Himalayan Countries | 0 | - | 4.95 | 136,048 |
| Andean Countries | 0 | - | 4.94 | 83,213 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,526 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,690 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,218 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,864 |
| Danube Countries | 0 | - | 4.97 | 71,283 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,029 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,731 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,912 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,855 |
| European Landlocked Countries | 0 | - | 4.99 | 145,993 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,566 |
| Countries with the Most Species | 0 | - | 4.99 | 95,358 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,694 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,277 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,446 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,078 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,730 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,098 |
| Countries in the Alps | 0 | - | 4.86 | 117,151 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,890 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,779 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,637 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,171 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,608 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,409 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,160 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,829 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,910 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,712 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,228 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,281 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,153 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,635 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,900 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,911 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,516 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,810 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,361 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,062 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,394 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,264 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,744 |
| Largest Countries By Category | 0 | - | 4.97 | 157,070 |
| Countries by Countries | 0 | - | 4.96 | 62,464 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,036 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,975 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,732,617 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,763 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,913 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,560 |
| Demonyms Quiz | 0 | - | 4.15 | 184,938 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,487 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,294 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,967 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,777 |
| Longest International Borders | 0 | - | 4.99 | 264,154 |
| Countries with Three Borders | 0 | - | 4.96 | 36,296 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,717 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,807 |
| Demonym of Every Country | 0 | - | 4.91 | 58,818 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,235 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,022 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,351 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,888 |
| Island Countries | 0 | - | 4.99 | 708,417 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,001 |
| Northernmost Countries | 0 | - | 4.99 | 358,823 |
| Countries of South America | 0 | - | 5.00 | 918,188 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,685 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,125 |
| "Land" Countries | 0 | - | 4.98 | 334,146 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,748 |
| World's Biggest Airlines | 0 | - | 4.44 | 124,235 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,234 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,967 |
| Countries with Megacities | 0 | - | 4.99 | 248,346 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,868 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,391 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,258 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,324 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,047 |
| Cities by Famous Street | 0 | - | 3.96 | 48,267 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,087 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,246 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,393 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,953 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,917 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,108 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,961 |
| Countries by Capital City | 0 | - | 5.00 | 67,211 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,596 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,127 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,588 |
| Moved Capital Cities | 0 | - | 4.96 | 73,790 |
| Countries by Official Language | 0 | - | 4.95 | 193,236 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,794 |
| Countries in their Native Language | 0 | - | 4.99 | 197,066 |
| Independence from Whom | 0 | - | 4.99 | 210,208 |
| Subdivisions by Country | 0 | - | 4.86 | 50,155 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,102 |
| Megadiverse Countries | 0 | - | 4.96 | 134,475 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,230 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,029 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,554 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,917 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,907 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,141 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,380 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,469 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,311 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,789 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,983 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,530 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,636 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,597 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,811 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,133 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,748 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,206 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,617 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,827 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,549 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,269 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,409 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,141 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,338 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,527 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,092 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,554 |
| Widest Countries East to West | 0 | - | 4.92 | 129,048 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,293 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,520 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,661 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,880 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,863 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,254 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,820 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,649 |
| Countries with Double Letters | 0 | - | 4.96 | 93,736 |
| Countries that End in N | 0 | - | 4.94 | 157,171 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,095 |
| Countries with Six Letters | 0 | - | 4.93 | 210,757 |
| Countries with W | 0 | - | 4.97 | 158,448 |
| Countries with Z | 0 | - | 4.98 | 288,303 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,801 |
| Countries That End in U | 0 | - | 4.95 | 119,626 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,920 |
| Countries that End in O | 0 | - | 4.92 | 158,675 |
| Countries that End in R | 0 | - | 4.87 | 118,388 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,944 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,462 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,588 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,685 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,233 |
| Countries That End in Y | 0 | - | 4.90 | 185,302 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,652 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,942 |
| Countries that End in I | 0 | - | 4.94 | 134,562 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,528 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,328 |
| Countries That End in NIA | 0 | - | 4.92 | 109,146 |
| Countries That End in BIA | 0 | - | 4.92 | 147,876 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,291 |
