| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,399,556 |
| Game of Thrones Houses | 0 | - | 4.52 | 86,411 |
| Game of Thrones Characters by Death | 0 | - | 4.41 | 54,233 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,350 |
| Empires by Maps | 0 | - | 4.98 | 118,230 |
| Simpsons Characters by Picture | 0 | - | 4.41 | 21,568 |
| All Country Flags of the World | 0 | - | 5.00 | 3,595,953 |
| Brand Logos Quiz #2 | 0 | - | 4.69 | 1,678,125 |
| Brand Logos Quiz #4 | 0 | - | 4.45 | 1,005,155 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,320 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,958 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,638 |
| Play-Doh People from History | 0 | - | 4.99 | 93,734 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,232 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,674 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,822 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,969 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,005 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,797 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,233 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,522 |
| Books of "A Song of Ice and Fire" | 0 | - | 4.50 | 13,892 |
| Game of Thrones - The Book | 0 | - | 4.40 | 91,631 |
| Game of Thrones - Were You Even Paying Attention? | 0 | - | 4.10 | 32,258 |
| Pokémon by Picture | 0 | - | 4.38 | 72,288 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,731 |
| Flags with Crescents | 0 | - | 4.98 | 167,349 |
| Country Flag Trivia | 0 | - | 4.81 | 55,807 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,276 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,365 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,770 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,369 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,295 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 59,842 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,955 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,391 |
| Brand Logos Quiz #5 | 0 | - | 4.38 | 1,057,253 |
| Brand Logos Quiz #6 | 0 | - | 4.32 | 778,258 |
| Brand Logos Quiz #3 | 0 | - | 4.32 | 1,217,584 |
| Brand Logos Quiz #8 | 0 | - | 4.36 | 526,799 |
| Brand Logos Quiz #7 | 0 | - | 4.36 | 604,990 |
| National Football Team Logos | 0 | - | 4.84 | 178,452 |
| Random Brand Logos | 0 | - | 4.45 | 399,184 |
| Game of Thrones Multiple Choice | 0 | - | 4.07 | 32,183 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,185 |
| The Bible by Picture | 0 | - | 4.23 | 19,956 |
| Years in History by Picture | 0 | - | 4.44 | 35,062 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,775 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,143 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,107 |
| Flags to Languages | 0 | - | 4.95 | 172,371 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,373 |
| Clothing Brand Logos | 0 | - | 4.24 | 221,791 |
| Soft Drink Brand Logos | 0 | - | 4.24 | 173,749 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,666 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,138 |
| Star Wars... or Star Trek? | 0 | - | 4.70 | 32,355 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,228 |
| Battle to Country | 0 | - | 4.91 | 52,456 |
| Monarchies of Europe | 0 | - | 4.90 | 97,234 |
| Monarchies of Asia | 0 | - | 4.97 | 70,546 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,659 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,295 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,499 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,828 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 65,973 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,910 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,131 |
| Orthodox Countries | 0 | - | 4.91 | 130,280 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,057 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,440 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,150 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,393 |
| Animals in the Bible | 0 | - | 4.83 | 35,737 |
| Fruits by Picture | 0 | - | 4.20 | 804,383 |
| Old Movies by Picture | 0 | - | 4.51 | 24,766 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,637 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,434 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,374 |
| First Names A - Z by Picture | 0 | - | 4.05 | 18,500 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,749 |
| Famous Italians by Picture | 0 | - | 4.05 | 21,839 |
| Famous Australians by Picture | 0 | - | 4.25 | 28,589 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,277 |
| Geography by Picture - B | 0 | - | 4.42 | 55,390 |
| Geography by Picture - H | 0 | - | 4.49 | 58,021 |
| Geography by Picture - N | 0 | - | 4.45 | 42,036 |
| Geography by Picture - R | 0 | - | 4.55 | 40,867 |
| Geography by Picture - T | 0 | - | 4.54 | 57,653 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,346 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 531,282 |
| Random Logos Quiz | 0 | - | 4.32 | 206,891 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,037 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,097 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,690 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,582 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,281 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,500 |
| Phineas and Ferb Theme Song Lyrics | 0 | - | 4.38 | 91,722 |
| Kardashian Family Members by Picture | 0 | - | 2.22 | 34,340 |
| Element... or Pokémon? | 0 | - | 4.98 | 130,026 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,326 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,153 |
| Star Wars Quotes | 0 | - | 4.84 | 173,294 |
| Name the English Monarchs | 0 | - | 4.92 | 497,506 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,183 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,050 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,457 |
| Top 100 Greatest NBA Players | 0 | - | 4.42 | 684,682 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,056 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,054 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,135 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,064 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,128 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,310 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,169 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,020 |
| Play Scrabble by Guessing Countries | 0 | - | 4.97 | 130,766 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 55,875 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,491 |
| Click a Valid Country A-Z | 0 | - | 4.97 | 520,543 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,843 |
| Click a Valid World Capital A-Z | 0 | - | 4.83 | 88,989 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 37,687 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,159 |
| Countries Mentioned in the Wikipedia Page of Germany | 0 | - | 4.81 | 63,516 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,382 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,285 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,422 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,953 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,886 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,589 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,001 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,465 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,617 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,405 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,575 |
| Musical Instruments by Picture #1 | 0 | - | 4.53 | 267,802 |
| Flowers by Picture | 0 | - | 4.46 | 104,987 |
| Name that Bug | 0 | - | 4.12 | 45,438 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,169 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,515 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,588 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,377 |
| Elements by Picture | 0 | - | 4.27 | 69,497 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,143 |
| Islands by Picture | 0 | - | 4.29 | 105,785 |
| Name that Object #1 | 0 | - | 3.56 | 96,277 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,367 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,011 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,928 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,110 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,795 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,288 |
| Songs by Picture Quiz #2 | 0 | - | 4.41 | 58,355 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,505 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,039 |
| Birds by Picture #1 | 0 | - | 4.46 | 41,060 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,191 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,885 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,049 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,362 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,738 |
| International Footballers by Picture | 0 | - | 4.50 | 54,605 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,379 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,514 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,245 |
| Geography by Picture - A | 0 | - | 4.39 | 60,028 |
| Geography by Picture - D | 0 | - | 4.15 | 45,469 |
| Geography by Picture - F | 0 | - | 4.31 | 50,810 |
| Geography by Picture - G | 0 | - | 4.38 | 47,774 |
| Geography by Picture - J | 0 | - | 4.16 | 38,317 |
| Geography by Picture - K | 0 | - | 4.28 | 32,998 |
| Geography by Picture - C | 0 | - | 4.31 | 56,893 |
| Geography by Picture - L | 0 | - | 4.37 | 58,732 |
| Geography by Picture - M | 0 | - | 4.14 | 40,332 |
| Geography by Picture - P | 0 | - | 4.24 | 42,286 |
| Geography by Picture - S | 0 | - | 4.38 | 46,897 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,146 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,666 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,715 |
| Flag Maths | 0 | - | 4.78 | 57,665 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,433 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,051 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,966 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,959 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,619 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,697 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,037 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,623 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,780 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 392,827 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,293 |
| Soccer Team Logos | 0 | - | 4.26 | 370,336 |
| Airline Logos | 0 | - | 4.45 | 139,878 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 175,785 |
| Fast Food Logos Quiz | 0 | - | 4.43 | 246,788 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 258,947 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,499 |
| Movie Logos | 0 | - | 4.33 | 235,565 |
