| Boundary Waters | 0 | - | 4.92 | 88,705 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,358 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,536 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,768,668 |
| Landlocked Countries | 0 | - | 4.99 | 424,308 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,845 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,785 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,815 |
| World Capitals Quiz | 0 | - | 5.00 | 5,098,014 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,552 |
| Himalayan Countries | 0 | - | 4.94 | 139,710 |
| Andean Countries | 0 | - | 4.94 | 85,149 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,325 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,579 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,903 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,186 |
| Danube Countries | 0 | - | 4.97 | 72,255 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,390 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,685 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,816 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,311 |
| European Landlocked Countries | 0 | - | 4.99 | 147,437 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,049 |
| Countries with the Most Species | 0 | - | 4.99 | 103,460 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,185 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,701 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,813 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,730 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,461 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,886 |
| Countries in the Alps | 0 | - | 4.87 | 118,552 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,242 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,566 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,845 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,858 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,781 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,120 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,025 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,715 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,331 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,049 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,783 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,650 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,432 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,667 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,758 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,463 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,509 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,480 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,462 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,130 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,793 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,415 |
| Largest Countries By Category | 0 | - | 4.97 | 158,610 |
| Countries by Countries | 0 | - | 4.96 | 63,490 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,062 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,361 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,961 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,178 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,320 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,942 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,705 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,586 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,712 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,471 |
| Longest International Borders | 0 | - | 4.99 | 265,603 |
| Countries with Three Borders | 0 | - | 4.96 | 36,715 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,278 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,418 |
| Demonym of Every Country | 0 | - | 4.90 | 61,270 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,904 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,410 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,252 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,836 |
| Island Countries | 0 | - | 4.99 | 711,985 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,061 |
| Northernmost Countries | 0 | - | 4.99 | 363,332 |
| Countries of South America | 0 | - | 5.00 | 930,638 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,043 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,916 |
| "Land" Countries | 0 | - | 4.98 | 338,015 |
| Top World Languages | 0 | - | 4.92 | 827,909 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,299 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,598 |
| All Country Flags of the World | 0 | - | 5.00 | 3,701,532 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,670 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,366 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,852 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,990 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,952 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,734 |
| Countries with Megacities | 0 | - | 4.99 | 266,274 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,460 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,874 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,756 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,984 |
| Biggest Cities in the World | 0 | - | 4.92 | 804,029 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,043 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,002 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,843 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,031 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,000 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,885 |
| Countries by Capital City | 0 | - | 5.00 | 69,150 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,700 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,085 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,248 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,672 |
| Moved Capital Cities | 0 | - | 4.96 | 74,557 |
| Countries by Official Language | 0 | - | 4.95 | 195,749 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,267 |
| Countries in their Native Language | 0 | - | 4.99 | 199,524 |
| Independence from Whom | 0 | - | 4.99 | 212,708 |
| Subdivisions by Country | 0 | - | 4.87 | 50,556 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,186 |
| Megadiverse Countries | 0 | - | 4.96 | 135,184 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,742 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,475 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,372 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,178 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,422 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,740 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,867 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,498 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,769 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,220 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,162 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,300 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,363 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,085 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,508 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,621 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,972 |
| World Map Quiz | 0 | - | 4.81 | 65,418 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,522 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,563 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,954 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,926 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,417 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,179 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,271 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,391 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,587 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,613 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,970 |
| Widest Countries East to West | 0 | - | 4.92 | 130,294 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,555 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,087 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,456 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,969 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,846 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,350 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,461 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,861 |
| Countries with Double Letters | 0 | - | 4.96 | 96,779 |
| Countries that End in N | 0 | - | 4.95 | 171,664 |
| Countries with Five Letters | 0 | - | 4.96 | 283,360 |
| Countries with Six Letters | 0 | - | 4.94 | 214,120 |
| Countries with W | 0 | - | 4.96 | 160,729 |
| Countries with Z | 0 | - | 4.98 | 292,099 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,077 |
| Countries That End in U | 0 | - | 4.95 | 121,067 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,875 |
| Countries that End in O | 0 | - | 4.92 | 159,715 |
| Countries that End in R | 0 | - | 4.87 | 119,101 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,851 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,554 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,989 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,699 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,630 |
| Countries That End in Y | 0 | - | 4.91 | 186,018 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,266 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,123 |
| Countries that End in I | 0 | - | 4.94 | 135,245 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,445 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,969 |
| Countries That End in NIA | 0 | - | 4.92 | 109,953 |
| Countries That End in BIA | 0 | - | 4.93 | 149,443 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,379 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,652 |
| Countries That End in RIA | 0 | - | 4.93 | 126,971 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,261 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,227 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,015 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,450 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,012 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,725 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,224 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,506 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,770 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,573 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,570 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,260 |
| Countries that End in L | 0 | - | 4.94 | 157,022 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,928 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,316 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,396 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,253 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,187 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,198 |
