| Pictures by Letter - A | 0 | - | 4.18 | 33,527 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,157 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,109 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,700 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,896 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,230 |
| Empires by Maps | 0 | - | 4.98 | 121,110 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,873 |
| Pictures by Letter - E | 0 | - | 3.51 | 34,568 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,663 |
| Pictures by Letter - F | 0 | - | 4.18 | 29,153 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,529 |
| Pictures by Letter - Y | 0 | - | 4.21 | 26,385 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,853 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,211 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,477 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,575 |
| Pictures by Letter - P | 0 | - | 4.05 | 26,131 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,850 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,767 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,379 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,815 |
| Play-Doh People from History | 0 | - | 4.99 | 95,143 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,809 |
| All Country Flags of the World | 0 | - | 5.00 | 3,686,307 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,567 |
| Pictures by Letter - C | 0 | - | 4.00 | 30,306 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,762 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,510 |
| Pictures by Letter - S | 0 | - | 3.82 | 21,025 |
| Pictures by Letter - W | 0 | - | 3.87 | 20,210 |
| Pictures by Letter - V | 0 | - | 4.00 | 18,053 |
| Years in History by Picture | 0 | - | 4.44 | 35,644 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,140 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,541,144 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,790 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,749 |
| Name that Object #1 | 0 | - | 3.57 | 96,549 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,709 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,762 |
| Flags with Crescents | 0 | - | 4.98 | 170,483 |
| Country Flag Trivia | 0 | - | 4.81 | 57,489 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,274 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,919 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,925 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,552 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,572 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,133 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 182,198 |
| National Football Team Logos | 0 | - | 4.85 | 180,977 |
| Old Movies by Picture | 0 | - | 4.51 | 25,159 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,164 |
| Random Logos Quiz | 0 | - | 4.33 | 208,899 |
| Fruits by Picture | 0 | - | 4.19 | 808,210 |
| Geography by Picture - B | 0 | - | 4.42 | 55,693 |
| Geography by Picture - H | 0 | - | 4.50 | 58,298 |
| Geography by Picture - N | 0 | - | 4.45 | 42,269 |
| Geography by Picture - R | 0 | - | 4.56 | 41,085 |
| Geography by Picture - T | 0 | - | 4.54 | 57,916 |
| Flags to Languages | 0 | - | 4.95 | 174,013 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,708 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,758 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,398 |
| Name that Object #2 | 0 | - | 3.64 | 15,475 |
| Name that Object #3 | 0 | - | 3.93 | 14,430 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,635 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,341 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,214 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 541,480 |
| Name that Bug | 0 | - | 4.12 | 45,596 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,433 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,083 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,798 |
| Elements by Picture | 0 | - | 4.27 | 70,121 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,396 |
| Islands by Picture | 0 | - | 4.28 | 107,342 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,357 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,656 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,827 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,361 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,096 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,110 |
| International Footballers by Picture | 0 | - | 4.51 | 55,989 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,236 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,097 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,996 |
| Geography by Picture - A | 0 | - | 4.39 | 60,341 |
| Geography by Picture - D | 0 | - | 4.15 | 45,721 |
| Geography by Picture - F | 0 | - | 4.31 | 51,089 |
| Geography by Picture - G | 0 | - | 4.39 | 48,019 |
| Geography by Picture - J | 0 | - | 4.16 | 38,525 |
| Geography by Picture - K | 0 | - | 4.29 | 33,185 |
| Geography by Picture - C | 0 | - | 4.31 | 57,146 |
| Geography by Picture - L | 0 | - | 4.37 | 59,061 |
| Geography by Picture - M | 0 | - | 4.14 | 40,519 |
| Geography by Picture - P | 0 | - | 4.24 | 42,498 |
| Geography by Picture - S | 0 | - | 4.38 | 47,107 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,204 |
| Flag Maths | 0 | - | 4.64 | 57,800 |
| Satellite Images #1 | 0 | - | 4.47 | 129,512 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,432 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,014 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,036 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,057 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,240 |
| Soccer Team Logos | 0 | - | 4.26 | 375,951 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 262,878 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,474 |
| Movie Logos | 0 | - | 4.33 | 239,358 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,740 |
| History by Picture - A | 0 | - | 4.26 | 45,984 |
| History by Picture - B | 0 | - | 4.40 | 49,162 |
| History by Picture - C | 0 | - | 4.36 | 54,688 |
| History by Picture - F | 0 | - | 4.35 | 38,038 |
| History by Picture - G | 0 | - | 4.40 | 42,282 |
| History by Picture - D | 0 | - | 4.29 | 44,481 |
| History by Picture - E | 0 | - | 4.25 | 44,083 |
| History by Picture - H | 0 | - | 4.37 | 36,926 |
| History by Picture - K | 0 | - | 4.35 | 33,483 |
| History by Picture - M | 0 | - | 4.17 | 36,255 |
| History by Picture - N | 0 | - | 4.40 | 41,388 |
| History by Picture - O | 0 | - | 4.39 | 36,429 |
| History by Picture - T | 0 | - | 4.20 | 33,421 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,466 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,197 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,943 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,430,247 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,546 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,615 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,350 |
| Foods by Picture | 0 | - | 3.81 | 226,331 |
| Flowers by Picture | 0 | - | 4.46 | 105,754 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,527 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,865 |
| Christmas by Picture | 0 | - | 4.26 | 28,207 |
| Hats by Picture | 0 | - | 4.21 | 17,996 |
| Weapons by Picture | 0 | - | 4.13 | 21,117 |
| Cars by Picture | 0 | - | 3.89 | 41,643 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,331 |
| Authors by Picture | 0 | - | 4.48 | 25,582 |
| Plants by Picture | 0 | - | 4.24 | 14,486 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,450 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,870 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,979 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,083 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,236 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,073 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,676 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,659 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,319 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,220 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,859 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,382 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,404 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,590 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,547 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,271 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,904 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,585 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,622 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 95,825 |
| Women in History by Picture | 0 | - | 4.25 | 25,971 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,252 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,814 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 239,971 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 159,584 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 93,672 |
| Musicians by Picture #1 | 0 | - | 4.37 | 109,411 |
| Musicians by Picture #2 | 0 | - | 4.29 | 76,913 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,271 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,276 |
| Geography by Picture - E | 0 | - | 3.55 | 47,442 |
| Landforms by Picture | 0 | - | 4.31 | 20,711 |
| Geography by Picture - I | 0 | - | 4.00 | 39,480 |
| Geography by Picture - O | 0 | - | 4.01 | 28,186 |
| Emoji Flags | 0 | - | 4.35 | 44,176 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,044 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,289 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,467 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,689 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,988 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,869 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,083 |
| Airline Logos | 0 | - | 4.45 | 141,085 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 248,921 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 159,469 |
| Brand Logos That Start With M | 0 | - | 4.40 | 63,168 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,952 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,311 |
| Brand Logos That Start With D | 0 | - | 4.36 | 61,857 |
| Brand Logos That Start With L | 0 | - | 4.39 | 61,517 |
| Brand Logos That Start With C | 0 | - | 4.20 | 49,890 |
| History by Picture - I | 0 | - | 4.24 | 26,343 |
| History by Picture - J | 0 | - | 4.18 | 26,839 |
| History by Picture - L | 0 | - | 4.18 | 30,890 |
| History by Picture - P | 0 | - | 4.08 | 25,381 |
| History by Picture - Q | 0 | - | 4.03 | 22,174 |
| History by Picture - R | 0 | - | 4.13 | 26,951 |
| History by Picture - S | 0 | - | 4.14 | 27,881 |
| History by Picture - U | 0 | - | 4.25 | 25,231 |
