| All Country Flags of the World | 0 | - | 5.00 | 3,664,528 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,537,276 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,092,973 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 733,454 |
| Flags with Crescents | 0 | - | 4.98 | 169,608 |
| Country Flag Trivia | 0 | - | 4.81 | 57,045 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,785 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,523 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,446 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,279 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,248 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,819 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,826 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,055 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,532 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,344 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,427 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,101 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,245 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,595 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,571 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,504 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,554 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,659 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,434 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,107 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,533 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,725 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,126 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,396 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,455 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,783 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,992 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,088 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,915 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,475 |
| Flags of North and South America | 0 | - | 4.99 | 373,114 |
| Flags to Languages | 0 | - | 4.95 | 173,646 |
| Former Flags | 0 | - | 4.97 | 107,735 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,955 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,542 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,469 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,114 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,966 |
| 20 Random Country Flags | 0 | - | 4.99 | 612,479 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,739 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,167 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,561 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,575 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,489 |
| Flag Maths | 0 | - | 4.64 | 57,763 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,821 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,682 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,953 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,769 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,506 |
| World Coats of Arms | 0 | - | 4.99 | 64,524 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,593 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,778 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,456 |
| Similar Flags #1 | 0 | - | 4.75 | 130,047 |
| Similar Flags #2 | 0 | - | 4.74 | 137,324 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.67 | 37,870 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,020 |
| Emoji Flags | 0 | - | 4.35 | 44,099 |
| Countries by Road Signs | 0 | - | 4.98 | 53,829 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,623 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,052 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,273 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,924 |
| Select the World Flags | 0 | - | 4.27 | 37,751 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,975 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,916 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,727 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,444 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,138 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,212 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,938 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,510 |
| Countries by Picture #1 | 0 | - | 4.50 | 114,595 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,561 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,868 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,229 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,609 |
| Pixelated World Map | 0 | - | 5.00 | 143,396 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,410 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,345 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,112 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,637 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,532 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,202 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,087 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,077 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,371 |
| Countries by Picture #2 | 0 | - | 4.37 | 71,678 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,291 |
| Countries by Picture #6 | 0 | - | 4.16 | 36,892 |
| Geography by Picture - B | 0 | - | 4.42 | 55,613 |
| Geography by Picture - H | 0 | - | 4.50 | 58,234 |
| Geography by Picture - N | 0 | - | 4.45 | 42,207 |
| Geography by Picture - R | 0 | - | 4.56 | 41,030 |
| Geography by Picture - T | 0 | - | 4.54 | 57,849 |
| Merged Company Logos #3 | 0 | - | 4.49 | 64,477 |
| Flags of Oceania | 0 | - | 5.00 | 259,448 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,323 |
| Flags of WW1 | 0 | - | 4.60 | 38,383 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,172 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,024 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,864 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,208 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,767 |
| Boundary Waters | 0 | - | 4.92 | 88,466 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,164 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,091 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,445 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,461 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,413 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,457,827 |
| Landlocked Countries | 0 | - | 4.99 | 420,511 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 572,220 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,480 |
| Satellite Images #1 | 0 | - | 4.47 | 129,384 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,318 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,922 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,935 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,994 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,017 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,821 |
| World Capitals Quiz | 0 | - | 5.00 | 5,073,722 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,463 |
| Merged Countries #2 | 0 | - | 4.96 | 99,082 |
| Merged Countries #6 | 0 | - | 4.90 | 73,282 |
| Merged Countries #7 | 0 | - | 4.93 | 82,627 |
| Geography by Picture - A | 0 | - | 4.39 | 60,263 |
| Geography by Picture - D | 0 | - | 4.15 | 45,667 |
| Geography by Picture - F | 0 | - | 4.31 | 51,012 |
| Geography by Picture - G | 0 | - | 4.38 | 47,953 |
| Geography by Picture - J | 0 | - | 4.16 | 38,470 |
| Geography by Picture - K | 0 | - | 4.29 | 33,133 |
| Geography by Picture - C | 0 | - | 4.31 | 57,080 |
| Geography by Picture - L | 0 | - | 4.37 | 58,973 |
| Geography by Picture - M | 0 | - | 4.14 | 40,468 |
| Geography by Picture - P | 0 | - | 4.24 | 42,441 |
| Geography by Picture - S | 0 | - | 4.38 | 47,046 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,447 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,372 |
| Islands by Picture | 0 | - | 4.28 | 106,980 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,605 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,834 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,950 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,175 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,270 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,912 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,368 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,034 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,217 |
| Island Countries | 0 | - | 4.99 | 710,372 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,701 |
| Himalayan Countries | 0 | - | 4.95 | 138,080 |
| Andean Countries | 0 | - | 4.95 | 84,263 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,483 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,320 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,118 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,558 |
| Danube Countries | 0 | - | 4.97 | 71,831 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,789 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,230 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,963 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,420 |
| European Landlocked Countries | 0 | - | 4.99 | 146,962 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,372 |
| Countries with the Most Species | 0 | - | 4.99 | 103,088 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,529 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,503 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,658 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,443 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,114 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,503 |
| Countries in the Alps | 0 | - | 4.87 | 117,955 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,417 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,704 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,548 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,450 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,305 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,831 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,337 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,074 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,701 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,566 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,419 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,069 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,349 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,363 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,532 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,178 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,687 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,822 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,157 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,659 |
