| Former Countries by Territory Map | 0 | - | 4.96 | 103,997 |
| Empires by Maps | 0 | - | 4.98 | 122,216 |
| Merged Company Logos #1 | 0 | - | 4.90 | 107,470 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,554 |
| Name that Object #1 | 0 | - | 3.57 | 96,638 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 105,403 |
| Play-Doh People from History | 0 | - | 4.99 | 95,619 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,148 |
| All Country Flags of the World | 0 | - | 5.00 | 3,716,617 |
| Years in History by Picture | 0 | - | 4.45 | 35,855 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,463 |
| Merged Company Logos #2 | 0 | - | 4.75 | 78,341 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,435 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,438 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,608 |
| Old Movies by Picture | 0 | - | 4.51 | 25,275 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,319 |
| Name that Object #2 | 0 | - | 3.63 | 15,532 |
| Name that Object #3 | 0 | - | 3.93 | 14,472 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,970 |
| Make a Stained Glass Window | 0 | - | 5.00 | 69,107 |
| Flags with Crescents | 0 | - | 4.98 | 171,438 |
| Country Flag Trivia | 0 | - | 4.81 | 58,103 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,965 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,484 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,667 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,991 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,034 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,522 |
| Random Logos Quiz | 0 | - | 4.33 | 209,734 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 184,287 |
| National Football Team Logos | 0 | - | 4.85 | 181,971 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,659 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,289 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,273 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,816 |
| Pictures by Letter - M | 0 | - | 4.24 | 38,021 |
| Fruits by Picture | 0 | - | 4.19 | 809,513 |
| Geography by Picture - B | 0 | - | 4.42 | 55,785 |
| Geography by Picture - H | 0 | - | 4.50 | 58,387 |
| Geography by Picture - N | 0 | - | 4.45 | 42,348 |
| Geography by Picture - R | 0 | - | 4.56 | 41,153 |
| Geography by Picture - T | 0 | - | 4.54 | 58,007 |
| All North American Pro Sports Logos | 0 | - | 4.72 | 116,470 |
| Flags to Languages | 0 | - | 4.95 | 174,550 |
| Pictures by Letter - E | 0 | - | 3.51 | 34,665 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,397 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,777 |
| Pictures by Letter - F | 0 | - | 4.18 | 29,278 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,606 |
| Pictures by Letter - Y | 0 | - | 4.21 | 26,463 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,941 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,303 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,590 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,668 |
| Pictures by Letter - P | 0 | - | 4.05 | 26,213 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,942 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,872 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,057 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 340,044 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 544,398 |
| Name that Bug | 0 | - | 4.12 | 45,646 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,522 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,289 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,990 |
| Elements by Picture | 0 | - | 4.27 | 70,334 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,517 |
| Islands by Picture | 0 | - | 4.28 | 107,828 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,462 |
| Geography by Picture - A | 0 | - | 4.39 | 60,441 |
| Geography by Picture - D | 0 | - | 4.15 | 45,791 |
| Geography by Picture - F | 0 | - | 4.31 | 51,185 |
| Geography by Picture - G | 0 | - | 4.39 | 48,085 |
| Geography by Picture - J | 0 | - | 4.16 | 38,600 |
| Geography by Picture - K | 0 | - | 4.29 | 33,253 |
| Geography by Picture - C | 0 | - | 4.31 | 57,242 |
| Geography by Picture - L | 0 | - | 4.37 | 59,146 |
| Geography by Picture - M | 0 | - | 4.14 | 40,586 |
| Geography by Picture - P | 0 | - | 4.24 | 42,572 |
| Geography by Picture - S | 0 | - | 4.38 | 47,184 |
| Video Game Logos Quiz | 0 | - | 4.40 | 185,133 |
| Movie Logos | 0 | - | 4.33 | 240,519 |
| History by Picture - A | 0 | - | 4.26 | 46,169 |
| History by Picture - B | 0 | - | 4.40 | 49,367 |
| History by Picture - C | 0 | - | 4.33 | 54,905 |
| History by Picture - F | 0 | - | 4.35 | 38,211 |
| History by Picture - G | 0 | - | 4.40 | 42,454 |
| History by Picture - D | 0 | - | 4.29 | 44,674 |
| History by Picture - E | 0 | - | 4.25 | 44,250 |
| History by Picture - H | 0 | - | 4.37 | 37,099 |
| History by Picture - K | 0 | - | 4.35 | 33,636 |
| History by Picture - M | 0 | - | 4.17 | 36,413 |
| History by Picture - N | 0 | - | 4.40 | 41,547 |
| History by Picture - O | 0 | - | 4.39 | 36,567 |
| History by Picture - T | 0 | - | 4.20 | 33,556 |
| Animals by Close-up Image | 0 | - | 4.42 | 219,101 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 46,030 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,496 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,482 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,897 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,225 |
| International Footballers by Picture | 0 | - | 4.51 | 56,466 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 286,546 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 109,005 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,429 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,165 |
| Flag Maths | 0 | - | 4.61 | 57,852 |
| Satellite Images #1 | 0 | - | 4.46 | 130,018 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,714 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,411 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,260 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,235 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,480 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,599 |
| Soccer Team Logos | 0 | - | 4.26 | 377,829 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 264,017 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,225 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,814 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,771 |
| Foods by Picture | 0 | - | 3.81 | 226,677 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,787 |
| Christmas by Picture | 0 | - | 4.26 | 28,234 |
| Hats by Picture | 0 | - | 4.21 | 18,021 |
| Weapons by Picture | 0 | - | 4.13 | 21,201 |
| Cars by Picture | 0 | - | 3.89 | 41,829 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,386 |
| Plants by Picture | 0 | - | 4.24 | 14,524 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,715 |
| Women in History by Picture | 0 | - | 4.25 | 26,043 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,864 |
| Geography by Picture - E | 0 | - | 3.55 | 47,497 |
| Landforms by Picture | 0 | - | 4.31 | 20,751 |
| Geography by Picture - I | 0 | - | 4.00 | 39,538 |
| Geography by Picture - O | 0 | - | 4.01 | 28,248 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,484 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,672 |
| Pictures by Letter - C | 0 | - | 4.00 | 30,416 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,857 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,581 |
| Pictures by Letter - S | 0 | - | 3.82 | 21,113 |
| Pictures by Letter - W | 0 | - | 3.87 | 20,292 |
| Pictures by Letter - V | 0 | - | 4.00 | 18,124 |
| History by Picture - I | 0 | - | 4.24 | 26,465 |
| History by Picture - J | 0 | - | 4.18 | 26,956 |
| History by Picture - L | 0 | - | 4.18 | 31,035 |
| History by Picture - P | 0 | - | 4.08 | 25,497 |
| History by Picture - Q | 0 | - | 4.03 | 22,271 |
| History by Picture - R | 0 | - | 4.13 | 27,068 |
| History by Picture - S | 0 | - | 4.14 | 28,000 |
| History by Picture - U | 0 | - | 4.25 | 25,342 |
| History by Picture - V | 0 | - | 4.31 | 25,329 |
| History by Picture - W | 0 | - | 4.01 | 21,829 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,845 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,885 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,822 |
| Flowers by Picture | 0 | - | 4.46 | 105,873 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,957 |
| Authors by Picture | 0 | - | 4.48 | 25,637 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,979 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 56,188 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,412 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,527 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,334 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,074 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,881 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,521 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,358 |
| Birds by Picture #1 | 0 | - | 4.47 | 42,073 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,581 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,817 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,786 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,690 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,384 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 72,147 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,794 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,857 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 96,124 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,359 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 244,805 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 160,555 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 94,464 |
| Musicians by Picture #1 | 0 | - | 4.38 | 110,113 |
| Musicians by Picture #2 | 0 | - | 4.29 | 77,446 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,649 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,590 |
| Emoji Flags | 0 | - | 4.35 | 44,297 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.69 | 38,243 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,691 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,666 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 67,007 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 71,300 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,932 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,750 |
| Airline Logos | 0 | - | 4.45 | 141,470 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,439,260 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 249,590 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 160,010 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,580 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,340 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,707 |
