| Countries of the World Quiz | 0 | - | 5.00 | 47,135,618 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,875 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,514 |
| Top World Languages | 0 | - | 4.92 | 816,813 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,079 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,273 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,536 |
| World's Busiest Airports | 0 | - | 4.95 | 226,428 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,082 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,946 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,519 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,985 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,990 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 38,138 |
| Boundary Waters | 0 | - | 4.92 | 88,204 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,944 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,617 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,939 |
| World Currency Quiz | 0 | - | 4.92 | 300,283 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,844 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,565 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,938 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,477 |
| Busiest Airports in the United States | 0 | - | 4.55 | 135,141 |
| Landlocked Countries | 0 | - | 4.99 | 416,301 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,802 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,842 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,346 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,236 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,496 |
| Cities by Airports | 0 | - | 4.49 | 88,485 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,316 |
| World Capitals Quiz | 0 | - | 5.00 | 5,048,205 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,770 |
| Himalayan Countries | 0 | - | 4.95 | 136,366 |
| Andean Countries | 0 | - | 4.95 | 83,405 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,669 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,895 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,360 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,965 |
| Danube Countries | 0 | - | 4.97 | 71,362 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,156 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,817 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,084 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,033 |
| European Landlocked Countries | 0 | - | 4.99 | 146,094 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,701 |
| Countries with the Most Species | 0 | - | 4.99 | 100,263 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,849 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,313 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,488 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,131 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,786 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,156 |
| Countries in the Alps | 0 | - | 4.86 | 117,288 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,922 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,870 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,812 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,231 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,706 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,768 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,222 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,947 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,971 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,771 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,304 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,339 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,189 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,694 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,966 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,973 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,641 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,868 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,404 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,190 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,794 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,481 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,792 |
| Largest Countries By Category | 0 | - | 4.97 | 157,208 |
| Countries by Countries | 0 | - | 4.96 | 62,561 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,068 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,054 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,738,104 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,785 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,996 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,613 |
| Demonyms Quiz | 0 | - | 4.15 | 184,969 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,317 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,139 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,826 |
| Longest International Borders | 0 | - | 4.99 | 264,247 |
| Countries with Three Borders | 0 | - | 4.96 | 36,330 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,765 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,850 |
| Demonym of Every Country | 0 | - | 4.91 | 58,885 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,243 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,553 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,029 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,670 |
| Island Countries | 0 | - | 4.99 | 708,698 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,912 |
| Northernmost Countries | 0 | - | 4.99 | 359,194 |
| Countries of South America | 0 | - | 5.00 | 919,192 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,044 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,520 |
| "Land" Countries | 0 | - | 4.98 | 334,387 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,779 |
| World's Biggest Airlines | 0 | - | 4.42 | 124,382 |
| Airline Logos | 0 | - | 4.45 | 140,239 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,256 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,176 |
| Countries with Megacities | 0 | - | 4.99 | 248,742 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,039 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,492 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,413 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,441 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,056 |
| 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 | 135,400 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,519 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,018 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,009 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,243 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,095 |
| Countries by Capital City | 0 | - | 5.00 | 67,390 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,690 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,211 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,653 |
| Moved Capital Cities | 0 | - | 4.96 | 73,848 |
| Countries by Official Language | 0 | - | 4.95 | 193,895 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,387 |
| Countries in their Native Language | 0 | - | 4.99 | 197,540 |
| Independence from Whom | 0 | - | 4.99 | 210,505 |
| Subdivisions by Country | 0 | - | 4.86 | 50,181 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,259 |
| Megadiverse Countries | 0 | - | 4.96 | 134,517 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,739 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,064 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,614 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,939 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,407 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,191 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,515 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,519 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,353 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,801 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,115 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,566 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,665 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,629 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,834 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,184 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,597 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,420 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,663 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,995 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,626 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,358 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,609 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,226 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,421 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,595 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,129 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,616 |
| Widest Countries East to West | 0 | - | 4.92 | 129,115 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,319 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,604 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,898 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,931 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,947 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,327 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,029 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,663 |
| Countries with Double Letters | 0 | - | 4.96 | 93,902 |
| Countries that End in N | 0 | - | 4.94 | 160,196 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,324 |
| Countries with Six Letters | 0 | - | 4.93 | 210,926 |
| Countries with W | 0 | - | 4.97 | 158,603 |
| Countries with Z | 0 | - | 4.98 | 288,525 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,904 |
| Countries That End in U | 0 | - | 4.95 | 119,747 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,064 |
| Countries that End in O | 0 | - | 4.92 | 158,748 |
| Countries that End in R | 0 | - | 4.87 | 118,441 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,986 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,626 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,674 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,760 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,325 |
| Countries That End in Y | 0 | - | 4.90 | 185,351 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,767 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,022 |
| Countries that End in I | 0 | - | 4.94 | 134,620 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,629 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,378 |
| Countries That End in NIA | 0 | - | 4.92 | 109,253 |
| Countries That End in BIA | 0 | - | 4.93 | 148,490 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,371 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,727 |
