| Countries of the World Quiz | 0 | - | 5.00 | 46,921,131 |
| NATO Countries | 0 | - | 4.98 | 275,756 |
| EU Countries Quiz | 0 | - | 4.99 | 269,947 |
| Landlocked Countries | 0 | - | 4.99 | 413,640 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,375 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,463 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,930 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,227 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,857 |
| Every Country Shape | 0 | - | 5.00 | 458,974 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,958 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,597 |
| Himalayan Countries | 0 | - | 4.95 | 135,356 |
| Andean Countries | 0 | - | 4.94 | 82,828 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,215 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,217 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,902 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,610 |
| Danube Countries | 0 | - | 4.97 | 71,080 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,768 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,539 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,485 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,402 |
| European Landlocked Countries | 0 | - | 4.99 | 145,754 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,215 |
| Countries with the Most Species | 0 | - | 4.99 | 95,241 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,346 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,370 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,958 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,576 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,823 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,565 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,256 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,012 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,422 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,161 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,003 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,580 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,755 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,298 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,059 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,196 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,042 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,453 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,747 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,753 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,063 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,645 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,254 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,773 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,306 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,674 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,602 |
| Largest Countries By Category | 0 | - | 4.97 | 156,758 |
| Countries by Countries | 0 | - | 4.96 | 62,256 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,767 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,961 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,126 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,853 |
| Island Countries | 0 | - | 4.99 | 707,631 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,456 |
| Northernmost Countries | 0 | - | 4.99 | 357,730 |
| Countries of South America | 0 | - | 5.00 | 914,767 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,461 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,366 |
| "Land" Countries | 0 | - | 4.98 | 333,658 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,405 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,341 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,024 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,049 |
| Orthodox Countries | 0 | - | 4.91 | 130,390 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,358 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,040 |
| Battle to Country | 0 | - | 4.91 | 52,528 |
| Monarchies of Europe | 0 | - | 4.90 | 97,326 |
| Monarchies of Asia | 0 | - | 4.97 | 70,608 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,434 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,476 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,283 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,263 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,443 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,345 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,662 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,277 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,301 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,037 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,569 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,041 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,600 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,223 |
| Countries with Megacities | 0 | - | 4.99 | 246,925 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,123 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,974 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,955 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,541 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,861 |
| Countries by Official Language | 0 | - | 4.95 | 192,771 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,133 |
| Countries in their Native Language | 0 | - | 4.99 | 196,638 |
| Independence from Whom | 0 | - | 4.99 | 209,692 |
| Subdivisions by Country | 0 | - | 4.86 | 50,064 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,751 |
| Megadiverse Countries | 0 | - | 4.97 | 133,903 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,802 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,919 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,428 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,862 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,658 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,998 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,019 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,144 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,213 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,746 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,573 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,418 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,493 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,504 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,675 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,027 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,266 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,366 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,255 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,092 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,594 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 79,610 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 76,325 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 75,586 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 153,539 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 72,813 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,332 |
| Communist Countries in History | 0 | - | 4.63 | 492,537 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.99 | 28,098 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,351 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,989 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,953 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,770 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,855 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,062 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,278 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,946 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,338 |
| Widest Countries East to West | 0 | - | 4.92 | 128,604 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,218 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,212 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,564 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,688 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,631 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,042 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,051 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,582 |
| Countries with Double Letters | 0 | - | 4.97 | 93,394 |
| Countries that End in N | 0 | - | 4.94 | 156,881 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,689 |
| Countries with Six Letters | 0 | - | 4.93 | 210,367 |
| Countries with W | 0 | - | 4.97 | 158,226 |
| Countries with Z | 0 | - | 4.98 | 287,877 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,554 |
| Countries That End in U | 0 | - | 4.95 | 119,517 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,553 |
| Countries that End in O | 0 | - | 4.92 | 158,555 |
| Countries that End in R | 0 | - | 4.87 | 118,275 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,859 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,026 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,331 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,496 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,021 |
| Countries That End in Y | 0 | - | 4.90 | 185,204 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,372 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,691 |
| Countries that End in I | 0 | - | 4.94 | 134,411 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,199 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,194 |
| Countries That End in NIA | 0 | - | 4.92 | 109,011 |
| Countries That End in BIA | 0 | - | 4.92 | 147,718 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,060 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,485 |
| Countries That End in RIA | 0 | - | 4.93 | 126,082 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,010 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,195 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,520 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,888 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,356 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,927 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,119 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,646 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,511 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,815 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,813 |
| Countries that End in L | 0 | - | 4.94 | 155,727 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,198 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,988 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,510 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,294 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,427 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,983 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,097 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 125,915 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,187 |
