| All Country Flags of the World | 0 | - | 5.00 | 3,597,341 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,332 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,941 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,332 |
| Flags with Crescents | 0 | - | 4.98 | 167,389 |
| Country Flag Trivia | 0 | - | 4.81 | 55,839 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,302 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,392 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,808 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,382 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,313 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,965 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,571 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,055 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,685 |
| Flags that are Red & White Only | 0 | - | 4.97 | 158,175 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,467 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,689 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,517 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,530 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,260 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,635 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,716 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,506 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,190 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,752 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,225 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,634 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,705 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,332 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,635 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,679 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,908 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,000 |
| Flags of North and South America | 0 | - | 4.99 | 366,316 |
| Flags to Languages | 0 | - | 4.95 | 172,399 |
| Former Flags | 0 | - | 4.97 | 106,578 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,588 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,143 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,717 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,504 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,676 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,879 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,009 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,561 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,440 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,366 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,189 |
| Flag Maths | 0 | - | 4.78 | 57,668 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,266 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,920 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,418 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,334 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,259 |
| World Coats of Arms | 0 | - | 4.99 | 63,807 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,290 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,686 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,746 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,301 |
| Similar Flags #1 | 0 | - | 4.74 | 129,023 |
| Similar Flags #2 | 0 | - | 4.74 | 136,286 |
| Emoji Flags | 0 | - | 4.35 | 43,801 |
| Countries by Road Signs | 0 | - | 4.98 | 53,041 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,980 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,968 |
| Select the World Flags | 0 | - | 4.27 | 37,382 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,243 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,535 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,746 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,003 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,652 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,790 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,659 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,201 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,336 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,960 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,352 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,136 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,919 |
| Pixelated World Map | 0 | - | 5.00 | 142,344 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,687 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,331 |
| Australian States and Territories | 0 | - | 4.95 | 140,596 |
| Counties of England | 0 | - | 4.97 | 788,688 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,243 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,635 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,914 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,219 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,895 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,025 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,529 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,138 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,907 |
| Geography by Picture - B | 0 | - | 4.42 | 55,393 |
| Geography by Picture - H | 0 | - | 4.49 | 58,026 |
| Geography by Picture - N | 0 | - | 4.45 | 42,038 |
| Geography by Picture - R | 0 | - | 4.55 | 40,869 |
| Geography by Picture - T | 0 | - | 4.54 | 57,661 |
| Flags of Oceania | 0 | - | 5.00 | 254,860 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,749 |
| Flags of WW1 | 0 | - | 4.60 | 37,904 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,388 |
| Regions of Italy | 0 | - | 4.92 | 74,627 |
| Provinces of China | 0 | - | 4.97 | 199,838 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,200 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,867 |
| States of Germany | 0 | - | 4.96 | 149,890 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,010 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,341 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,725 |
| Boundary Waters | 0 | - | 4.92 | 88,018 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,793 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,217 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,194 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,794 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,685 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 92,717 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,555 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,309 |
| US States Quiz | 0 | - | 5.00 | 16,687,517 |
| Departments of France | 0 | - | 4.93 | 52,725 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,877,861 |
| Landlocked Countries | 0 | - | 4.99 | 413,144 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 551,533 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,025 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,977 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,962 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,627 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,630 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,789 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,312 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,735 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,102 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,320 |
| Merged Countries #2 | 0 | - | 4.96 | 98,420 |
| Merged Countries #6 | 0 | - | 4.91 | 72,664 |
| Merged Countries #7 | 0 | - | 4.92 | 81,917 |
| Geography by Picture - A | 0 | - | 4.39 | 60,035 |
| Geography by Picture - D | 0 | - | 4.15 | 45,475 |
| Geography by Picture - F | 0 | - | 4.31 | 50,815 |
| Geography by Picture - G | 0 | - | 4.38 | 47,777 |
| Geography by Picture - J | 0 | - | 4.16 | 38,328 |
| Geography by Picture - K | 0 | - | 4.28 | 33,005 |
| Geography by Picture - C | 0 | - | 4.31 | 56,895 |
| Geography by Picture - L | 0 | - | 4.37 | 58,735 |
| Geography by Picture - M | 0 | - | 4.14 | 40,338 |
| Geography by Picture - P | 0 | - | 4.24 | 42,292 |
| Geography by Picture - S | 0 | - | 4.38 | 46,900 |
| Counties of Ireland | 0 | - | 4.92 | 192,898 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,501 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,172 |
| Islands by Picture | 0 | - | 4.29 | 105,807 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,126 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,945 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,514 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,879 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,334 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,893 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,871 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,951 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,297 |
| Island Countries | 0 | - | 4.99 | 707,386 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,380 |
| Himalayan Countries | 0 | - | 4.95 | 135,156 |
| Andean Countries | 0 | - | 4.94 | 82,728 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,146 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,078 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,818 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,512 |
| Danube Countries | 0 | - | 4.97 | 71,031 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,693 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,485 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,359 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,279 |
| European Landlocked Countries | 0 | - | 4.99 | 145,700 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,107 |
| Countries with the Most Species | 0 | - | 4.99 | 95,215 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,259 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,187 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,351 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,927 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,540 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,897 |
| Countries in the Alps | 0 | - | 4.87 | 116,741 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,512 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,155 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,969 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,363 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,097 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,958 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,508 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,711 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,862 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,008 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,178 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,012 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,396 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,702 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,708 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,959 |
