| Countries of the World Quiz | 0 | - | 5.00 | 46,957,681 |
| Landlocked Countries | 0 | - | 4.99 | 414,058 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,571 |
| Countries by Emojis | 0 | - | 4.99 | 236,605 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,166 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,720,769 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,773 |
| Himalayan Countries | 0 | - | 4.95 | 135,515 |
| Andean Countries | 0 | - | 4.94 | 82,910 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,286 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,305 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,981 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,660 |
| Danube Countries | 0 | - | 4.97 | 71,121 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,825 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,586 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,583 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,488 |
| European Landlocked Countries | 0 | - | 4.99 | 145,808 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,278 |
| Countries with the Most Species | 0 | - | 4.99 | 95,271 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,424 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,215 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,384 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,981 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,607 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,989 |
| Countries in the Alps | 0 | - | 4.86 | 116,905 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,617 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,343 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,047 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,465 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,229 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,045 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,629 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,803 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,468 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,107 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,207 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,072 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,482 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,796 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,784 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,160 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,695 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,283 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,836 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,545 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,828 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,628 |
| Largest Countries By Category | 0 | - | 4.97 | 156,843 |
| Countries by Countries | 0 | - | 4.96 | 62,307 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,477 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,978 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,346 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,815 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,626 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,283 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,105 |
| Island Countries | 0 | - | 4.99 | 707,787 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,093 |
| Northernmost Countries | 0 | - | 4.99 | 357,976 |
| Countries of South America | 0 | - | 5.00 | 915,605 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,602 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,071 |
| "Land" Countries | 0 | - | 4.98 | 333,761 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,439 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,400 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,379 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,890 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,363,602 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,763 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,669 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,627 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,534 |
| Countries with Megacities | 0 | - | 4.99 | 247,394 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,361 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,141 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,783 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,060 |
| Countries by Official Language | 0 | - | 4.95 | 192,871 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,263 |
| Countries in their Native Language | 0 | - | 4.99 | 196,726 |
| Independence from Whom | 0 | - | 4.99 | 209,817 |
| Subdivisions by Country | 0 | - | 4.86 | 50,089 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,848 |
| Megadiverse Countries | 0 | - | 4.97 | 133,944 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,897 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,940 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,452 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,871 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,723 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,034 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,124 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,191 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,237 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,755 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,681 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,445 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,529 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,525 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,713 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,046 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,704 |
| World Map Quiz | 0 | - | 4.81 | 63,587 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 129,736 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,943 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,385 |
| Countries by Founding Story | 0 | - | 4.95 | 76,589 |
| Countries by Road Signs | 0 | - | 4.98 | 53,152 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,457 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,163 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,997 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,901 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,914 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,105 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,317 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,971 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,367 |
| Widest Countries East to West | 0 | - | 4.92 | 128,646 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,221 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,284 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,592 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,722 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,676 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,100 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,061 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,597 |
| Countries with Double Letters | 0 | - | 4.96 | 93,466 |
| Countries that End in N | 0 | - | 4.94 | 156,966 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,771 |
| Countries with Six Letters | 0 | - | 4.93 | 210,436 |
| Countries with W | 0 | - | 4.97 | 158,284 |
| Countries with Z | 0 | - | 4.98 | 287,978 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,611 |
| Countries That End in U | 0 | - | 4.95 | 119,542 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,665 |
| Countries that End in O | 0 | - | 4.92 | 158,586 |
| Countries that End in R | 0 | - | 4.87 | 118,300 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,875 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,173 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,397 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,540 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,080 |
| Countries That End in Y | 0 | - | 4.90 | 185,229 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,452 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,751 |
| Countries that End in I | 0 | - | 4.94 | 134,460 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,280 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,234 |
| Countries That End in NIA | 0 | - | 4.92 | 109,044 |
| Countries That End in BIA | 0 | - | 4.92 | 147,751 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,128 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,527 |
| Countries That End in RIA | 0 | - | 4.93 | 126,118 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,052 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,275 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,553 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,935 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,415 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,953 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,165 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,694 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,552 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,835 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,202 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,868 |
| Countries that End in L | 0 | - | 4.94 | 155,784 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,496 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,997 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,543 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,342 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,462 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,385 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,280 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 133,819 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,347 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,623 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,673 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,691 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,184 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,435 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,352 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,081 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,117 |
| Name a Valid African Country | 0 | - | 4.98 | 153,031 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,346 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,896 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,857 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 335,140 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,803,059 |
| One Border Countries | 0 | - | 4.98 | 464,746 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,590,169 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,043 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,680 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,947 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,160 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,982 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,543 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,736 |
