| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,763 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,795 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,862 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,077 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,159 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,849 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,445 |
| African Great Lakes | 0 | - | 4.82 | 65,174 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,153 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,807 |
| Countries with Four Letters | 0 | - | 4.99 | 418,565 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,616 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,316 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,193 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,141 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,253 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,419 |
| Landforms by Country | 0 | - | 4.52 | 51,917 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,861 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,208 |
| Capitals by River | 0 | - | 4.55 | 48,236 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,925,235 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,052 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,458 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,810 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,611 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,335 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,448 |
| Country Chain | 0 | - | 4.96 | 215,747 |
| South China Sea Countries | 0 | - | 4.78 | 57,494 |
| Countries by Emojis | 0 | - | 4.99 | 236,209 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,121 |
| Countries in Squares of the World Map | 0 | - | 5.00 | 182,824 |
| Islands by Country #1 | 0 | - | 4.87 | 174,496 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,930 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,290 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,342 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,831 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,410 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,840 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,577 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,433 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,607 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,820 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,426 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,510 |
| Rivers of the United States | 0 | - | 4.93 | 65,524 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,409 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,299 |
| Landlocked Countries | 0 | - | 4.99 | 413,683 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,454 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,462 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,354 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,342 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,858 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,686 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,637 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,601 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,864 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,357 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,470 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,142 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,240 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,495 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,608 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,422 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,038 |
| Random Countries by Borders | 0 | - | 4.99 | 81,682 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,241 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,835 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,598 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,474 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,066 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,993 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,138 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,877 |
| Island Countries | 0 | - | 4.99 | 707,650 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,616 |
| Himalayan Countries | 0 | - | 4.95 | 135,382 |
| Andean Countries | 0 | - | 4.94 | 82,834 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,223 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,225 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,913 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,617 |
| Danube Countries | 0 | - | 4.97 | 71,088 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,769 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,541 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,496 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,410 |
| European Landlocked Countries | 0 | - | 4.99 | 145,760 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,220 |
| Countries with the Most Species | 0 | - | 4.99 | 95,243 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,356 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,200 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,960 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,579 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,831 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,575 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,267 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,015 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,427 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,174 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,009 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,584 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,760 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,313 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,065 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,046 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,454 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,753 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,758 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,077 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,652 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,774 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,329 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,688 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,606 |
| Largest Countries By Category | 0 | - | 4.97 | 156,767 |
| Countries by Countries | 0 | - | 4.96 | 62,261 |
| Top 10 African Countries by Coastline | 0 | - | 4.27 | 47,822 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,484 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,396 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,706 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,332 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,774 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,526 |
| Northernmost Countries | 0 | - | 4.99 | 357,759 |
| Countries of South America | 0 | - | 5.00 | 914,877 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,601 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,584 |
| "Land" Countries | 0 | - | 4.98 | 333,669 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,417 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,655 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,985 |
| Sea in the Answers | 0 | - | 4.10 | 48,568 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,197 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,673 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,269 |
| Countries with Megacities | 0 | - | 4.99 | 246,985 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,154 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,999 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,576 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,893 |
| Countries by Official Language | 0 | - | 4.95 | 192,784 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,148 |
| Countries in their Native Language | 0 | - | 4.99 | 196,645 |
| Independence from Whom | 0 | - | 4.99 | 209,709 |
| Subdivisions by Country | 0 | - | 4.86 | 50,069 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,767 |
| Megadiverse Countries | 0 | - | 4.97 | 133,907 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,809 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,429 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,863 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,670 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,007 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,034 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,150 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,216 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,748 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,581 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,425 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,500 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,506 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,682 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,030 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,606 |
| World Map Quiz | 0 | - | 4.81 | 63,499 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,703 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,334 |
| Countries by Founding Story | 0 | - | 4.95 | 76,551 |
| Countries by Road Signs | 0 | - | 4.98 | 53,104 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,364 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,996 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,958 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,787 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,860 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,067 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,281 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,951 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,338 |
| Widest Countries East to West | 0 | - | 4.92 | 128,610 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,218 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,223 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,570 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,693 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,638 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,048 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,051 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,585 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 335,041 |
| Countries with Double Letters | 0 | - | 4.97 | 93,399 |
| Countries that End in N | 0 | - | 4.94 | 156,889 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,698 |
| Countries with Six Letters | 0 | - | 4.93 | 210,375 |
