| Boundary Waters | 0 | - | 4.93 | 81,652 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,001 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,665 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 331,573 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,529,748 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,038 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,099 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,096 |
| Members of the Arab League | 0 | - | 4.85 | 65,270 |
| Sahara Desert Countries | 0 | - | 4.97 | 129,431 |
| Himalayan Countries | 0 | - | 4.94 | 107,648 |
| Andean Countries | 0 | - | 4.91 | 59,750 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,817 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,493 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,886 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,668 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,992 |
| Danube Countries | 0 | - | 4.96 | 57,080 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,097 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,183 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,321 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,129 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,423 |
| European Landlocked Countries | 0 | - | 4.99 | 136,802 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,528 |
| Countries with the Most Species | 0 | - | 4.99 | 89,774 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,023 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,920 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,226 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,835 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,755 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,008 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,700 |
| Countries in the Alps | 0 | - | 4.84 | 103,534 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,146 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,812 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,088 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,157 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,675 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,131 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,296 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,602 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,600 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,207 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,969 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,899 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,920 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,340 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,479 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,048 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,860 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,788 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,867 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 200,657 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,653 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,684 |
| Largest Countries By Category | 0 | - | 4.97 | 146,045 |
| Countries by Countries | 0 | - | 4.96 | 55,339 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,074 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,222 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 135,880 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,613 |
| Tourist Attraction by Negative Review | 0 | - | 4.90 | 60,305 |
| Who Controls It? #1 | 0 | - | 4.83 | 45,754 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 182,656 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,659 |
| Longest International Borders | 0 | - | 4.99 | 236,027 |
| Countries with Three Borders | 0 | - | 4.96 | 31,936 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,587 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,048 |
| World Capitals Quiz | 0 | - | 5.00 | 4,551,163 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,144,242 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,207,798 |
| Demonyms Quiz | 0 | - | 4.12 | 179,469 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,400,830 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,709 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 360,540 |
| Island Countries Quiz | 0 | - | 4.99 | 666,424 |
| Biggest Countries by Area | 0 | - | 5.00 | 943,278 |
| Northernmost Countries | 0 | - | 4.99 | 330,073 |
| Countries of South America | 0 | - | 5.00 | 805,395 |
| Countries of Oceania | 0 | - | 5.00 | 907,798 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,600,306 |
| Top World Languages | 0 | - | 4.92 | 718,999 |
| Analogies of Countries #1 | 0 | - | 4.88 | 63,262 |
| Pacific Ocean General Knowledge | 0 | - | 4.59 | 26,853 |
| Largest Deserts in the World | 0 | - | 4.03 | 41,516 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,486 |
| World Map Divided into Regions | 0 | - | 4.18 | 36,119 |
| Name a Valid Answer - Geography | 0 | - | 4.92 | 78,486 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,172 |
| Countries with Megacities | 0 | - | 4.99 | 200,603 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 174,348 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,316 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,495 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,324 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,551 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,584 |
| Northernmost Capital Cities | 0 | - | 4.98 | 95,484 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,514 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,236 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 92,476 |
| Same Letter Country and Capital | 0 | - | 4.99 | 129,198 |
| Countries by Capital City | 0 | - | 4.99 | 50,847 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 66,772 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 105,865 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 73,991 |
| Moved Capital Cities | 0 | - | 4.96 | 67,706 |
| Countries by Official Language | 0 | - | 4.96 | 174,577 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,975 |
| Countries in their Native Language | 0 | - | 4.98 | 179,722 |
| Independence from Whom | 0 | - | 4.99 | 188,148 |
| Subdivisions by Country | 0 | - | 4.82 | 46,767 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,001 |
| Megadiverse Countries | 0 | - | 4.96 | 126,319 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,890 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,318 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,698 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,622 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,656 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,149 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,819 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,516 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,740 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,705 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,060 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,720 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,222 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,164 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,807 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 85,096 |
| World Map Quiz | 0 | - | 4.91 | 50,828 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,379 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,037 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,203 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,464 |
| Countries With the Most Languages | 0 | - | 4.91 | 176,474 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,417 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,707 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,803 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,789 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,271 |
| Widest Countries East to West | 0 | - | 4.93 | 120,236 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,048 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,085 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,568 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,106 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,334 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,284 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,935 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,693 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,306 |
| Countries with Double Letters | 0 | - | 4.96 | 71,087 |
| Countries that End in N | 0 | - | 4.94 | 135,337 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 232,677 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,811 |
| Countries with W | 0 | - | 4.96 | 125,115 |
| Countries with Z | 0 | - | 4.98 | 263,227 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,182 |
| Countries That End in U | 0 | - | 4.95 | 109,045 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 91,779 |
| Countries that End in O | 0 | - | 4.92 | 148,347 |
| Countries that End in R | 0 | - | 4.85 | 97,145 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,889 |
| Countries Ending in "IA" | 0 | - | 4.99 | 173,353 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,259 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,381 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,316 |
| Countries That End in Y | 0 | - | 4.90 | 162,184 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,439 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 122,014 |
| Countries that End in I | 0 | - | 4.92 | 115,043 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,124 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,148 |
| Countries That End in NIA | 0 | - | 4.93 | 101,555 |
| Countries That End in BIA | 0 | - | 4.91 | 126,989 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,710 |
| Countries Whose Names Start with Saint | 0 | - | 4.89 | 110,621 |
| Countries That End in RIA | 0 | - | 4.90 | 101,649 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,351 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,614 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,102 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,162 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,762 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,493 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,748 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,446 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,979 |
| Countries that End in L | 0 | - | 4.95 | 135,508 |
| "Land" Countries | 0 | - | 4.98 | 291,701 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,806 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 81,595 |
| City to Country Quiz #1 | 0 | - | 4.94 | 135,047 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,813 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,306 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 210,280 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 169,513 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,420 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,356 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,651 |
