| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,860 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,394 |
| World's Busiest Airports | 0 | - | 4.95 | 221,406 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,814 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,116,458 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,818 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,268 |
| Top World Languages | 0 | - | 4.92 | 816,459 |
| Busiest Airports in the United States | 0 | - | 4.54 | 135,037 |
| Airport Codes Quiz #2 | 0 | - | 4.39 | 96,550 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,001 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,231 |
| Cities by Airports | 0 | - | 4.49 | 88,458 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,828 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,446 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,873 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,098 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,762 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,909 |
| World Currency Quiz | 0 | - | 4.92 | 300,097 |
| Boundary Waters | 0 | - | 4.92 | 88,186 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,931 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,582 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,521 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,917 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,448 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,779 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,809 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,832 |
| Landlocked Countries | 0 | - | 4.99 | 416,029 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,777 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,321 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,203 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,461 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,295 |
| World Capitals Quiz | 0 | - | 5.00 | 5,046,849 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,630 |
| Himalayan Countries | 0 | - | 4.95 | 136,243 |
| Andean Countries | 0 | - | 4.95 | 83,326 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,603 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,817 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,305 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,925 |
| Danube Countries | 0 | - | 4.97 | 71,334 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,116 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,790 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,021 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,974 |
| European Landlocked Countries | 0 | - | 4.99 | 146,052 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,660 |
| Countries with the Most Species | 0 | - | 4.99 | 97,621 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,806 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,299 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,477 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,114 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,761 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,133 |
| Countries in the Alps | 0 | - | 4.86 | 117,253 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,913 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,841 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,755 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,212 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,666 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,552 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,204 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,911 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,952 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,753 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,284 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,323 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,182 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,676 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,937 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,944 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,609 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,852 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,387 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,132 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,681 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,422 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,780 |
| Largest Countries By Category | 0 | - | 4.97 | 157,177 |
| Countries by Countries | 0 | - | 4.96 | 62,530 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,060 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,033 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,736,434 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,977 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,606 |
| Demonyms Quiz | 0 | - | 4.15 | 184,955 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,309 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,078 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,813 |
| Longest International Borders | 0 | - | 4.99 | 264,227 |
| Countries with Three Borders | 0 | - | 4.96 | 36,318 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,750 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,834 |
| Demonym of Every Country | 0 | - | 4.91 | 58,861 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,396 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,576,427 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,541 |
| Island Countries | 0 | - | 4.99 | 708,608 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,656 |
| Northernmost Countries | 0 | - | 4.99 | 359,070 |
| Countries of South America | 0 | - | 5.00 | 918,833 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,643 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,625 |
| "Land" Countries | 0 | - | 4.98 | 334,281 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,334 |
| Airline Logos | 0 | - | 4.45 | 140,221 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,935 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,107 |
| All Country Flags of the World | 0 | - | 5.00 | 3,624,455 |
| Foods of the World by Description | 0 | - | 4.18 | 45,967 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,252 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,241 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,074 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,632 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,125 |
| Countries with Megacities | 0 | - | 4.99 | 248,627 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,990 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,463 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,369 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,415 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,381 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,053 |
| Cities by Famous Street | 0 | - | 3.96 | 48,275 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,093 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,357 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,476 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,987 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,964 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,190 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,042 |
| Countries by Capital City | 0 | - | 5.00 | 67,322 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,652 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,188 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,482 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,627 |
| Moved Capital Cities | 0 | - | 4.96 | 73,826 |
| Countries by Official Language | 0 | - | 4.95 | 193,796 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,284 |
| Countries in their Native Language | 0 | - | 4.99 | 197,440 |
| Independence from Whom | 0 | - | 4.99 | 210,402 |
| Subdivisions by Country | 0 | - | 4.86 | 50,171 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,221 |
| Megadiverse Countries | 0 | - | 4.96 | 134,498 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,651 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,056 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,595 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,936 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,101 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,176 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,473 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,503 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,333 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,071 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,555 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,652 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,623 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,828 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,166 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,360 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,649 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,951 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,606 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,327 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,540 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,193 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,394 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,572 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,113 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,598 |
| Widest Countries East to West | 0 | - | 4.92 | 129,095 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,308 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,576 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,750 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,920 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,920 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,305 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,979 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,657 |
| Airlines by Country | 0 | - | 4.52 | 135,007 |
| Countries with Double Letters | 0 | - | 4.96 | 93,822 |
| Countries that End in N | 0 | - | 4.94 | 157,254 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,218 |
| Countries with Six Letters | 0 | - | 4.93 | 210,849 |
| Countries with W | 0 | - | 4.97 | 158,509 |
| Countries with Z | 0 | - | 4.98 | 288,405 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,859 |
| Countries That End in U | 0 | - | 4.95 | 119,666 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,004 |
| Countries that End in O | 0 | - | 4.92 | 158,697 |
| Countries that End in R | 0 | - | 4.87 | 118,415 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,968 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,573 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,637 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,724 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,293 |
| Countries That End in Y | 0 | - | 4.90 | 185,325 |
