| Boundary Waters | 0 | - | 4.92 | 88,053 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,822 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,307 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,929,425 |
| Landlocked Countries | 0 | - | 4.99 | 413,729 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,167 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,651 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,028 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,378 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,636 |
| Himalayan Countries | 0 | - | 4.95 | 135,406 |
| Andean Countries | 0 | - | 4.94 | 82,840 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,234 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,231 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,922 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,623 |
| Danube Countries | 0 | - | 4.97 | 71,093 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,775 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,547 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,509 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,420 |
| European Landlocked Countries | 0 | - | 4.99 | 145,764 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,227 |
| Countries with the Most Species | 0 | - | 4.99 | 95,247 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,366 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,201 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,372 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,964 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,581 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,954 |
| Countries in the Alps | 0 | - | 4.86 | 116,839 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,581 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,275 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,019 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,431 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,183 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,011 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,590 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,769 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,341 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,072 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,048 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,459 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,757 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,762 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,095 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,654 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,257 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,779 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,352 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,705 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,609 |
| Largest Countries By Category | 0 | - | 4.97 | 156,780 |
| Countries by Countries | 0 | - | 4.96 | 62,268 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,403 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,778 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,940 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,721 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,491 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,569 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,241 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,444 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,631 |
| Longest International Borders | 0 | - | 4.99 | 263,552 |
| Countries with Three Borders | 0 | - | 4.96 | 36,185 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,605 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,682 |
| Demonym of Every Country | 0 | - | 4.91 | 58,648 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,174 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,402 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,150 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,902 |
| Island Countries | 0 | - | 4.99 | 707,673 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,602 |
| Northernmost Countries | 0 | - | 4.99 | 357,783 |
| Countries of South America | 0 | - | 5.00 | 914,953 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,725 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,754 |
| "Land" Countries | 0 | - | 4.98 | 333,681 |
| Top World Languages | 0 | - | 4.92 | 813,299 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,615 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,071 |
| All Country Flags of the World | 0 | - | 5.00 | 3,603,416 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,166 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,528 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,296 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,705 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,320 |
| Countries with Megacities | 0 | - | 4.99 | 247,063 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,191 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,024 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,614 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,930 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,575 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,802 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,970 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,666 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,617 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,651 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,477 |
| Countries by Capital City | 0 | - | 5.00 | 66,683 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,352 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,914 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,474 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,426 |
| Moved Capital Cities | 0 | - | 4.96 | 73,599 |
| Countries by Official Language | 0 | - | 4.95 | 192,800 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,161 |
| Countries in their Native Language | 0 | - | 4.99 | 196,661 |
| Independence from Whom | 0 | - | 4.99 | 209,720 |
| Subdivisions by Country | 0 | - | 4.86 | 50,071 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,778 |
| Megadiverse Countries | 0 | - | 4.97 | 133,909 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,818 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,864 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,681 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,010 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,039 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,159 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,219 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,750 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,594 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,430 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,502 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,509 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,689 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,032 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,619 |
| World Map Quiz | 0 | - | 4.81 | 63,511 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,728 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,341 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,373 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,003 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,963 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,800 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,866 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,072 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,283 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,953 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,341 |
| Widest Countries East to West | 0 | - | 4.92 | 128,614 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,227 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,573 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,698 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,642 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,056 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,052 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,586 |
| Countries with Double Letters | 0 | - | 4.97 | 93,409 |
| Countries that End in N | 0 | - | 4.94 | 156,898 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,709 |
| Countries with Six Letters | 0 | - | 4.93 | 210,388 |
| Countries with W | 0 | - | 4.97 | 158,240 |
| Countries with Z | 0 | - | 4.98 | 287,901 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,567 |
| Countries That End in U | 0 | - | 4.95 | 119,525 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,582 |
| Countries that End in O | 0 | - | 4.92 | 158,567 |
| Countries that End in R | 0 | - | 4.87 | 118,279 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,862 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,064 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,354 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,506 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,035 |
| Countries That End in Y | 0 | - | 4.90 | 185,213 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,392 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,699 |
| Countries that End in I | 0 | - | 4.94 | 134,423 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,211 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,200 |
| Countries That End in NIA | 0 | - | 4.92 | 109,014 |
| Countries That End in BIA | 0 | - | 4.92 | 147,722 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,080 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,494 |
| Countries That End in RIA | 0 | - | 4.93 | 126,091 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,020 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,213 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,536 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,892 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,367 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,935 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,133 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,659 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,518 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,818 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,828 |
| Countries that End in L | 0 | - | 4.94 | 155,743 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,261 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,989 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,518 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,310 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,438 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,052 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,118 |
