| All Country Flags of the World | 0 | - | 5.00 | 3,246,578 |
| Countries by Road Signs | 0 | - | 4.98 | 48,697 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 57,162 |
| Islands by Shape #2 | 0 | - | 4.88 | 46,608 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,442,876 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,044,652 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 699,534 |
| Countries with the Highest Minimum Elevation | 0 | - | 4.90 | 14,834 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 174,649 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 99,760 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.84 | 87,792 |
| Flags with Crescents | 0 | - | 4.98 | 154,002 |
| Country Flag Trivia | 0 | - | 4.81 | 49,738 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 93,273 |
| Country Flags with the Union Jack | 0 | - | 4.83 | 61,696 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.84 | 46,573 |
| Boundary Waters | 0 | - | 4.93 | 84,416 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 32,211 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 79,902 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.92 | 53,075 |
| "Second Best" Geography Edition #2 | 0 | - | 4.85 | 55,432 |
| Countries by Satellite Image #1 | 0 | - | 4.88 | 136,381 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 78,603 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 46,293 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 120,649 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 95,027 |
| Flags with the Most Stars | 0 | - | 4.91 | 113,719 |
| Flags that are Red & White Only | 0 | - | 4.96 | 136,347 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 133,578 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 43,465 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 39,632 |
| Four Countries with Similar Flags #1 | 0 | - | 4.96 | 47,695 |
| Pixelated World Map | 0 | - | 5.00 | 135,178 |
| Country Flags with the Most Red | 0 | - | 4.97 | 98,256 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 84,400 |
| Country Flags with the Most Green | 0 | - | 4.96 | 91,769 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 86,651 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 92,392 |
| Country Flags with the Most Black | 0 | - | 4.94 | 90,749 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 64,021 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 46,330 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 85,525 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 66,250 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 52,241 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 60,325 |
| World Coats of Arms | 0 | - | 4.99 | 59,212 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 84,423 |
| Flags to Languages | 0 | - | 4.95 | 164,970 |
| Former Flags | 0 | - | 4.98 | 100,065 |
| Country Flags With Blue Removed | 0 | - | 4.90 | 38,568 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,115,794 |
| Flags of Asia Quiz | 0 | - | 4.99 | 559,466 |
| Flags of Africa Quiz | 0 | - | 5.00 | 418,341 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 330,329 |
| Countries by Partial Flag Images #6 | 0 | - | 4.91 | 31,600 |
| Geography by Picture - B | 0 | - | 4.41 | 53,898 |
| Geography by Picture - H | 0 | - | 4.49 | 56,662 |
| Geography by Picture - N | 0 | - | 4.43 | 40,840 |
| Geography by Picture - R | 0 | - | 4.55 | 39,727 |
| Geography by Picture - T | 0 | - | 4.54 | 56,257 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.92 | 28,521 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,607,396 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 373,206 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 443,262 |
| Flags of Oceania | 0 | - | 5.00 | 232,237 |
| Three Band Flags of Europe | 0 | - | 4.97 | 181,275 |
| Pixelated Africa Map | 0 | - | 4.98 | 92,727 |
| Pixelated Asia Map | 0 | - | 4.91 | 67,352 |
| Pixelated Europe Map | 0 | - | 4.88 | 114,832 |
| World Geography on a Map #1 | 0 | - | 4.93 | 70,179 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 89,562 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 144,838 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 115,884 |
| World Capitals Quiz | 0 | - | 5.00 | 4,748,504 |
| Sahara Desert Countries | 0 | - | 4.98 | 141,189 |
| Himalayan Countries | 0 | - | 4.95 | 118,353 |
| Andean Countries | 0 | - | 4.92 | 66,269 |
| Countries with the Oldest Median Age | 0 | - | 4.83 | 67,366 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 54,985 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,178 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,050 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 57,742 |
| Danube Countries | 0 | - | 4.97 | 59,788 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,461 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 80,858 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,097 |
| Countries with the Worst Passports | 0 | - | 4.91 | 60,174 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,161 |
| European Landlocked Countries | 0 | - | 4.99 | 139,741 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,213 |
| Countries with the Most Species | 0 | - | 4.99 | 91,643 |
| Countries 197 to 205 | 0 | - | 4.87 | 61,702 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,258 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,387 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,677 |
| Countries that Use the Peso | 0 | - | 4.83 | 48,839 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,279 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,701 |
| Countries in the Alps | 0 | - | 4.86 | 108,548 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,616 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 95,718 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,571 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,489 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,343 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,043 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 93,908 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,009 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,335 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 57,901 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,069 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,683 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,548 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,311 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,028 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,648 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 106,874 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,095 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,029 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 217,670 |
| World Countries - Blind Typing | 0 | - | 5.00 | 82,529 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,386 |
| Largest Countries By Category | 0 | - | 4.97 | 149,938 |
| Countries by Countries | 0 | - | 4.96 | 57,701 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,331,743 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,130 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,305 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,005 |
| All Countries by Population With a Map | 0 | - | 4.98 | 89,980 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 81,939 |
| Countries by Highest Mountain | 0 | - | 4.50 | 18,806 |
| Random Flag to Country | 0 | - | 4.99 | 540,877 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 82,789 |
| Countries with the Highest Elevation with Exceptions | 0 | - | 4.71 | 58,337 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,404,769 |
| Countries by Bordering Flags #1 | 0 | - | 4.93 | 97,531 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 78,338 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 139,705 |
| Western Europe Map Quiz | 0 | - | 4.87 | 91,041 |
| Geography by Picture - A | 0 | - | 4.37 | 58,475 |
| Geography by Picture - D | 0 | - | 4.14 | 44,336 |
| Geography by Picture - F | 0 | - | 4.30 | 49,540 |
| Geography by Picture - G | 0 | - | 4.39 | 46,595 |
| Geography by Picture - J | 0 | - | 4.15 | 37,347 |
| Geography by Picture - K | 0 | - | 4.28 | 32,026 |
| Geography by Picture - C | 0 | - | 4.30 | 55,537 |
| Geography by Picture - L | 0 | - | 4.35 | 57,283 |
| Geography by Picture - M | 0 | - | 4.12 | 39,352 |
| Geography by Picture - P | 0 | - | 4.25 | 41,248 |
| Geography by Picture - S | 0 | - | 4.36 | 45,761 |
| Random Flags Quiz | 0 | - | 4.42 | 266,516 |
| Flags of the Mediterranean | 0 | - | 4.94 | 129,654 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 135,814 |
| Satellite Images Quiz #1 | 0 | - | 4.49 | 125,773 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 106,242 |
| Satellite Images Quiz #4 | 0 | - | 4.54 | 86,760 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 47,767 |
| Satellite Images Quiz #6 | 0 | - | 4.53 | 37,305 |
| Cities by Picture #1 | 0 | - | 4.70 | 81,209 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 62,693 |
| Who Controls It? #1 | 0 | - | 4.82 | 46,828 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 187,365 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 113,739 |
| Longest International Borders | 0 | - | 4.99 | 241,905 |
| Countries with Three Borders | 0 | - | 4.96 | 33,688 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 38,677 |
| Largest Cities for each Latitude Degree | 0 | - | 5.00 | 43,676 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 35,619 |
| Demonym of Every Country | 0 | - | 4.91 | 54,078 |
| Islands by Shape #1 | 0 | - | 4.28 | 72,563 |
| Islands by Picture | 0 | - | 4.29 | 98,992 |
| Former Countries by Territory Map | 0 | - | 4.96 | 92,625 |
| Empires by Maps | 0 | - | 4.99 | 105,148 |
| Pacific Ocean General Knowledge | 0 | - | 4.65 | 35,423 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 44,696 |
| "Second Best" Geography Edition #1 | 0 | - | 4.65 | 60,910 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,469,545 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 356,572 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 377,431 |
| Island Countries Quiz | 0 | - | 4.99 | 685,248 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 68,466 |
| Countries by Satellite Image #2 | 0 | - | 4.78 | 66,884 |
| Countries by Satellite Image #4 | 0 | - | 4.62 | 64,423 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 45,207 |
| Country Flags with the Southern Cross | 0 | - | 4.71 | 53,612 |
| Similar Flags #1 | 0 | - | 4.70 | 115,962 |
| Similar Flags #2 | 0 | - | 4.78 | 118,544 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.74 | 42,669 |
| Countries by Coat of Arms #2 | 0 | - | 4.75 | 33,158 |
| Biggest Countries by Area | 0 | - | 5.00 | 978,981 |
| Northernmost Countries | 0 | - | 4.99 | 339,785 |
| Mountains by Country | 0 | - | 4.74 | 79,502 |
| Countries of South America | 0 | - | 5.00 | 847,850 |
| Countries of Oceania | 0 | - | 5.00 | 958,411 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,696,532 |
| Countries by Picture #1 | 0 | - | 4.52 | 94,010 |
| Countries by Picture #3 | 0 | - | 4.52 | 56,719 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 44,721 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 70,561 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.81 | 90,170 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 61,717 |
