| Countries by Road Signs | 0 | - | 4.98 | 46,381 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 54,906 |
| All Country Flags of the World | 0 | - | 5.00 | 3,064,638 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,392,309 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,016,493 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 681,148 |
| Islands by Shape #2 | 0 | - | 4.87 | 45,372 |
| Countries with Wild Tigers | 0 | - | 4.95 | 112,500 |
| Countries with Wild Penguins | 0 | - | 4.93 | 91,417 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.89 | 79,784 |
| Flags with Crescents | 0 | - | 4.98 | 146,677 |
| Country Flag Trivia | 0 | - | 4.81 | 45,443 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.99 | 78,266 |
| Country Flags with the Union Jack | 0 | - | 4.83 | 57,743 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.82 | 43,317 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,068,675 |
| Flags of Asia Quiz | 0 | - | 4.99 | 535,862 |
| Flags of Africa Quiz | 0 | - | 4.99 | 397,308 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 316,760 |
| Australian Animals By Picture | 0 | - | 4.44 | 29,563 |
| Countries by Satellite Image #1 | 0 | - | 4.88 | 131,702 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 76,720 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.87 | 45,006 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 115,135 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 90,524 |
| Flags with the Most Stars | 0 | - | 4.90 | 108,553 |
| Flags that are Red & White Only | 0 | - | 4.97 | 132,531 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 128,088 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 37,716 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 36,657 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 44,568 |
| Pixelated World Map | 0 | - | 5.00 | 130,763 |
| Country Flags with the Most Red | 0 | - | 4.97 | 93,853 |
| Country Flags with the Most Blue | 0 | - | 4.91 | 81,211 |
| Country Flags with the Most Green | 0 | - | 4.95 | 81,908 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 83,349 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 89,445 |
| Country Flags with the Most Black | 0 | - | 4.94 | 87,843 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 56,186 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 44,625 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 82,918 |
| Countries by Partial Flag Images #4 | 0 | - | 4.90 | 63,792 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 49,515 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 58,927 |
| World Coats of Arms | 0 | - | 4.99 | 56,806 |
| Countries with the Most Sheep | 0 | - | 4.88 | 83,140 |
| Countries With Blue and White Flags | 0 | - | 4.89 | 82,760 |
| Flags to Languages | 0 | - | 4.95 | 160,804 |
| Former Flags | 0 | - | 4.97 | 82,986 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 35,182 |
| European Countries with NO Wolves | 0 | - | 4.63 | 64,166 |
| Random Flag to Country | 0 | - | 4.99 | 516,835 |
| Countries by Partial Flag Images #6 | 0 | - | 4.90 | 28,596 |
| Countries that Catch the Most Fish | 0 | - | 4.88 | 102,882 |
| Countries with the Most Wolves | 0 | - | 4.88 | 79,942 |
| Flags of Oceania | 0 | - | 5.00 | 221,034 |
| Three Band Flags of Europe | 0 | - | 4.97 | 174,584 |
| Pixelated Africa Map | 0 | - | 4.98 | 89,882 |
| Pixelated Asia Map | 0 | - | 4.90 | 64,551 |
| Pixelated Europe Map | 0 | - | 4.90 | 111,113 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.92 | 27,201 |
| Countries With The Most Bird Species | 0 | - | 4.87 | 20,364 |
| Countries With Two or More Bear Species | 0 | - | 4.89 | 19,119 |
| Countries with the Most Forest A-Z | 0 | - | 4.57 | 51,887 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.66 | 60,160 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 95,201 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 76,353 |
| Geography by Picture - H | 0 | - | 4.51 | 55,666 |
| Geography by Picture - N | 0 | - | 4.46 | 39,973 |
| Geography by Picture - R | 0 | - | 4.54 | 38,961 |
| Geography by Picture - T | 0 | - | 4.56 | 55,284 |
| Flags of the Mediterranean | 0 | - | 4.93 | 126,068 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.83 | 87,780 |
| Country Flags Multiple Choice | 0 | - | 4.98 | 117,153 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.51 | 23,694 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.94 | 111,768 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,837,853 |
| Countries with the Most Wild Elephants | 0 | - | 4.57 | 51,391 |
| Animal Populations of Countries | 0 | - | 4.50 | 40,652 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 42,789 |
| Top 15 Countries with the Most Cows | 0 | - | 4.66 | 90,121 |
| Random Flags Quiz | 0 | - | 4.41 | 259,711 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 153,822 |
| Satellite Images Quiz #1 | 0 | - | 4.47 | 123,765 |
| Satellite Images Quiz #2 | 0 | - | 4.65 | 104,548 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 85,087 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 46,345 |
| Satellite Images Quiz #6 | 0 | - | 4.53 | 36,106 |
| Cities by Picture #1 | 0 | - | 4.70 | 78,482 |
| Boundary Waters | 0 | - | 4.93 | 82,089 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,570 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.92 | 47,947 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 52,678 |
| World Capitals Quiz | 0 | - | 5.00 | 4,584,413 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 335,313 |
| Countries by Satellite Image #3 | 0 | - | 4.65 | 66,954 |
| Countries by Satellite Image #2 | 0 | - | 4.79 | 65,044 |
| Countries by Satellite Image #4 | 0 | - | 4.66 | 62,957 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 44,263 |
| Country Flags with the Southern Cross | 0 | - | 4.72 | 52,202 |
| Similar Flags #1 | 0 | - | 4.75 | 112,784 |
| Similar Flags #2 | 0 | - | 4.78 | 114,999 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 41,717 |
| Countries with NO Snakes | 0 | - | 4.52 | 62,443 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,181,791 |
| Countries by Coat of Arms #2 | 0 | - | 4.78 | 32,572 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,235,495 |
| Countries by Picture #1 | 0 | - | 4.51 | 91,150 |
| Countries by Picture #3 | 0 | - | 4.52 | 55,309 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 43,085 |
| Geography by Picture - A | 0 | - | 4.35 | 57,396 |
| Geography by Picture - B | 0 | - | 4.37 | 52,891 |
| Geography by Picture - D | 0 | - | 4.13 | 43,537 |
| Geography by Picture - F | 0 | - | 4.29 | 48,711 |
| Geography by Picture - G | 0 | - | 4.39 | 45,753 |
| Geography by Picture - J | 0 | - | 4.14 | 36,688 |
| Geography by Picture - C | 0 | - | 4.28 | 54,635 |
| Geography by Picture - L | 0 | - | 4.34 | 56,303 |
| Geography by Picture - M | 0 | - | 4.11 | 38,680 |
| Geography by Picture - P | 0 | - | 4.26 | 40,497 |
| Geography by Picture - S | 0 | - | 4.35 | 44,947 |
| Satellite Images - Island Chains | 0 | - | 4.42 | 58,888 |
| Islands by Satellite Image #1 | 0 | - | 4.71 | 63,499 |
| Landmarks Picture Quiz #1 | 0 | - | 4.21 | 363,784 |
| Airline Logos | 0 | - | 4.43 | 130,114 |
| Islands by Shape #1 | 0 | - | 4.28 | 71,857 |
| Islands by Picture | 0 | - | 4.29 | 94,320 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,838 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,361 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 85,786 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 140,015 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,721 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,411,002 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,508 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 363,309 |
| Members of the Arab League | 0 | - | 4.86 | 66,621 |
| Island Countries Quiz | 0 | - | 4.99 | 669,413 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,775 |
| Himalayan Countries | 0 | - | 4.94 | 108,713 |
| Andean Countries | 0 | - | 4.91 | 60,390 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,574 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,983 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,618 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,925 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,366 |
| Danube Countries | 0 | - | 4.96 | 57,289 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,285 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,344 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,843 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,517 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,177 |
| European Landlocked Countries | 0 | - | 4.99 | 137,291 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,927 |
| Countries with the Most Species | 0 | - | 4.99 | 90,090 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,461 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,063 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,355 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,147 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,935 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,169 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 50,006 |
| Countries in the Alps | 0 | - | 4.84 | 103,991 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,564 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,791 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,372 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,479 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,999 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,427 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,652 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,836 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,750 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,493 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,252 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,079 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,067 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,671 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,756 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,327 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,828 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,029 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,125 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 203,275 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,702 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,896 |
| Largest Countries By Category | 0 | - | 4.97 | 146,578 |
| Countries by Countries | 0 | - | 4.95 | 55,706 |
| Country Flags with the Most White | 0 | - | 4.91 | 126,698 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,264 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,181 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 78,129 |
| Countries with Wild Lions | 0 | - | 4.72 | 22,139 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,774 |
| Biggest Countries by Area | 0 | - | 5.00 | 948,911 |
| Northernmost Countries | 0 | - | 4.99 | 331,203 |
| Countries of South America | 0 | - | 5.00 | 811,560 |
| Countries of Oceania | 0 | - | 5.00 | 915,470 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,614,907 |
| Top 10 Countries with the Most Horses | 0 | - | 4.51 | 65,115 |
| Europe Map Quiz | 0 | - | 5.00 | 4,358,077 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,415 |
