| Boundary Waters | 0 | - | 4.92 | 88,273 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,000 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,704 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,204,027 |
| Landlocked Countries | 0 | - | 4.99 | 417,172 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,416 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,364 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,633 |
| World Capitals Quiz | 0 | - | 5.00 | 5,053,602 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,181 |
| Himalayan Countries | 0 | - | 4.95 | 136,736 |
| Andean Countries | 0 | - | 4.95 | 83,589 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,849 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,138 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,507 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,113 |
| Danube Countries | 0 | - | 4.97 | 71,479 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,291 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,890 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,280 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,268 |
| European Landlocked Countries | 0 | - | 4.99 | 146,181 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,855 |
| Countries with the Most Species | 0 | - | 4.99 | 102,320 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,989 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,352 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,533 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,201 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,846 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,226 |
| Countries in the Alps | 0 | - | 4.86 | 117,411 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,954 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,022 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,295 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,794 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,892 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,313 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,058 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,032 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,854 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,389 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,389 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,230 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,780 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,039 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,049 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,824 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,932 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,462 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,295 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,302 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,724 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,868 |
| Largest Countries By Category | 0 | - | 4.97 | 157,347 |
| Countries by Countries | 0 | - | 4.96 | 62,653 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,943 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,100 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,137 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,744,520 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,170 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,670 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,025 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,338 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,530 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,933 |
| Longest International Borders | 0 | - | 4.99 | 264,386 |
| Countries with Three Borders | 0 | - | 4.96 | 36,373 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,816 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,904 |
| Demonym of Every Country | 0 | - | 4.91 | 58,980 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,432 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,118 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,049 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,149 |
| Island Countries | 0 | - | 4.99 | 709,049 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,978 |
| Northernmost Countries | 0 | - | 4.99 | 359,658 |
| Countries of South America | 0 | - | 5.00 | 920,416 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,925 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,500 |
| "Land" Countries | 0 | - | 4.98 | 335,045 |
| Top World Languages | 0 | - | 4.92 | 818,087 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,767 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,405 |
| All Country Flags of the World | 0 | - | 5.00 | 3,634,581 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,281 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,259 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,946 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,740 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,057 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,459 |
| Countries with Megacities | 0 | - | 4.99 | 249,358 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,313 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,648 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,634 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,622 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,670 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,553 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,681 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,094 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,124 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,575 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,277 |
| Countries by Capital City | 0 | - | 5.00 | 67,598 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,808 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,306 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,956 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,760 |
| Moved Capital Cities | 0 | - | 4.96 | 73,925 |
| Countries by Official Language | 0 | - | 4.95 | 194,199 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,002 |
| Countries in their Native Language | 0 | - | 4.99 | 197,799 |
| Independence from Whom | 0 | - | 4.99 | 210,944 |
| Subdivisions by Country | 0 | - | 4.86 | 50,219 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,432 |
| Megadiverse Countries | 0 | - | 4.96 | 134,592 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,966 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,103 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,657 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,960 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,508 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,265 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,683 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,587 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,399 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,818 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,444 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,608 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,708 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,677 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,886 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,245 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,718 |
| World Map Quiz | 0 | - | 4.81 | 64,202 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,669 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,758 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,154 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,728 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,460 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,849 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,331 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,512 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,676 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,173 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,984 |
| Widest Countries East to West | 0 | - | 4.92 | 129,209 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,339 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,720 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,944 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,989 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,034 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,408 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,144 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,687 |
| Countries with Double Letters | 0 | - | 4.96 | 94,445 |
| Countries that End in N | 0 | - | 4.95 | 168,349 |
| Countries with Five Letters | 0 | - | 4.96 | 269,415 |
| Countries with Six Letters | 0 | - | 4.93 | 211,638 |
| Countries with W | 0 | - | 4.97 | 159,060 |
| Countries with Z | 0 | - | 4.98 | 289,127 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,263 |
| Countries That End in U | 0 | - | 4.95 | 120,119 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,313 |
| Countries that End in O | 0 | - | 4.92 | 158,983 |
| Countries that End in R | 0 | - | 4.87 | 118,578 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,368 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,901 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,842 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,889 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,471 |
| Countries That End in Y | 0 | - | 4.90 | 185,497 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,947 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,178 |
| Countries that End in I | 0 | - | 4.94 | 134,717 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,775 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,452 |
| Countries That End in NIA | 0 | - | 4.92 | 109,342 |
| Countries That End in BIA | 0 | - | 4.93 | 148,639 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,495 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,835 |
| Countries That End in RIA | 0 | - | 4.93 | 126,389 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,410 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,213 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,946 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,275 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,892 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,189 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,504 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,029 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,908 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,072 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,596 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,301 |
| Countries that End in L | 0 | - | 4.94 | 156,353 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,178 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,094 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,740 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,601 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,657 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,421 |
