| Former Countries by Territory Map | 0 | - | 4.96 | 104,137 |
| Empires by Maps | 0 | - | 4.98 | 122,428 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,587 |
| Name that Object #1 | 0 | - | 3.57 | 96,647 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 105,581 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,237 |
| All Country Flags of the World | 0 | - | 5.00 | 3,721,423 |
| Years in History by Picture | 0 | - | 4.45 | 35,919 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,516 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,254 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,906 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,919 |
| Old Movies by Picture | 0 | - | 4.51 | 25,287 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,337 |
| Name that Object #2 | 0 | - | 3.63 | 15,540 |
| Name that Object #3 | 0 | - | 3.93 | 14,476 |
| Animals by Skeleton Image | 0 | - | 4.81 | 47,015 |
| Make a Stained Glass Window | 0 | - | 5.00 | 69,154 |
| Flags with Crescents | 0 | - | 4.98 | 171,620 |
| Country Flag Trivia | 0 | - | 4.82 | 58,230 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,096 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,575 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,803 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,086 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,114 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,588 |
| Random Logos Quiz | 0 | - | 4.33 | 209,839 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 184,602 |
| National Football Team Logos | 0 | - | 4.85 | 182,129 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,679 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,305 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,296 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,836 |
| Pictures by Letter - M | 0 | - | 4.24 | 38,040 |
| Fruits by Picture | 0 | - | 4.19 | 809,694 |
| Geography by Picture - B | 0 | - | 4.42 | 55,823 |
| Geography by Picture - H | 0 | - | 4.50 | 58,417 |
| Geography by Picture - N | 0 | - | 4.45 | 42,382 |
| Geography by Picture - R | 0 | - | 4.56 | 41,178 |
| Geography by Picture - T | 0 | - | 4.54 | 58,028 |
| All North American Pro Sports Logos | 0 | - | 4.72 | 116,575 |
| Flags to Languages | 0 | - | 4.95 | 174,645 |
| Pictures by Letter - E | 0 | - | 3.51 | 34,675 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,410 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,790 |
| Pictures by Letter - F | 0 | - | 4.18 | 29,296 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,620 |
| Pictures by Letter - Y | 0 | - | 4.21 | 26,475 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,952 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,314 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,604 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,680 |
| Pictures by Letter - P | 0 | - | 4.05 | 26,228 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,953 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,886 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,103 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 340,852 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 544,823 |
| Name that Bug | 0 | - | 4.12 | 45,655 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,545 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,310 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 51,003 |
| Elements by Picture | 0 | - | 4.27 | 70,364 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,537 |
| Islands by Picture | 0 | - | 4.28 | 107,913 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,475 |
| Geography by Picture - A | 0 | - | 4.39 | 60,470 |
| Geography by Picture - D | 0 | - | 4.15 | 45,815 |
| Geography by Picture - F | 0 | - | 4.31 | 51,221 |
| Geography by Picture - G | 0 | - | 4.39 | 48,112 |
| Geography by Picture - J | 0 | - | 4.16 | 38,626 |
| Geography by Picture - K | 0 | - | 4.29 | 33,283 |
| Geography by Picture - C | 0 | - | 4.31 | 57,267 |
| Geography by Picture - L | 0 | - | 4.37 | 59,163 |
| Geography by Picture - M | 0 | - | 4.14 | 40,605 |
| Geography by Picture - P | 0 | - | 4.24 | 42,593 |
| Geography by Picture - S | 0 | - | 4.38 | 47,200 |
| Video Game Logos Quiz | 0 | - | 4.40 | 185,205 |
| Movie Logos | 0 | - | 4.33 | 240,684 |
| History by Picture - A | 0 | - | 4.26 | 46,201 |
| History by Picture - B | 0 | - | 4.40 | 49,401 |
| History by Picture - C | 0 | - | 4.33 | 54,941 |
| History by Picture - F | 0 | - | 4.35 | 38,242 |
| History by Picture - G | 0 | - | 4.40 | 42,481 |
| History by Picture - D | 0 | - | 4.29 | 44,704 |
| History by Picture - E | 0 | - | 4.25 | 44,289 |
| History by Picture - H | 0 | - | 4.37 | 37,130 |
| History by Picture - K | 0 | - | 4.35 | 33,656 |
| History by Picture - M | 0 | - | 4.17 | 36,435 |
| History by Picture - N | 0 | - | 4.40 | 41,570 |
| History by Picture - O | 0 | - | 4.39 | 36,585 |
| History by Picture - T | 0 | - | 4.20 | 33,580 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,827 |
| Animals by Close-up Image | 0 | - | 4.42 | 219,181 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 46,046 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,522 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,518 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,946 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,240 |
| International Footballers by Picture | 0 | - | 4.51 | 56,543 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 287,225 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 109,539 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,718 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,302 |
| Flag Maths | 0 | - | 4.61 | 57,860 |
| Satellite Images #1 | 0 | - | 4.46 | 130,044 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,741 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,430 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,281 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,249 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,613 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,634 |
| Soccer Team Logos | 0 | - | 4.26 | 378,068 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 264,165 |
| Brand Logos That Start with A | 0 | - | 4.52 | 71,280 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,850 |
| Foods by Picture | 0 | - | 3.81 | 226,720 |
| Junk Foods by Picture | 0 | - | 3.69 | 96,812 |
| Christmas by Picture | 0 | - | 4.26 | 28,238 |
| Hats by Picture | 0 | - | 4.21 | 18,024 |
| Weapons by Picture | 0 | - | 4.13 | 21,214 |
| Cars by Picture | 0 | - | 3.89 | 41,848 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,397 |
| Plants by Picture | 0 | - | 4.24 | 14,528 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,777 |
| Women in History by Picture | 0 | - | 4.25 | 26,058 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,874 |
| Geography by Picture - E | 0 | - | 3.54 | 47,514 |
| Landforms by Picture | 0 | - | 4.31 | 20,765 |
| Geography by Picture - I | 0 | - | 4.00 | 39,552 |
| Geography by Picture - O | 0 | - | 4.01 | 28,265 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,587 |
| Pictures by Letter - H | 0 | - | 3.97 | 30,684 |
| Pictures by Letter - C | 0 | - | 4.00 | 30,429 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,867 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,589 |
| Pictures by Letter - S | 0 | - | 3.82 | 21,126 |
| Pictures by Letter - W | 0 | - | 3.87 | 20,303 |
| Pictures by Letter - V | 0 | - | 4.00 | 18,134 |
| History by Picture - I | 0 | - | 4.24 | 26,489 |
| History by Picture - J | 0 | - | 4.18 | 26,983 |
| History by Picture - L | 0 | - | 4.18 | 31,056 |
| History by Picture - P | 0 | - | 4.08 | 25,516 |
| History by Picture - Q | 0 | - | 4.03 | 22,287 |
| History by Picture - R | 0 | - | 4.13 | 27,084 |
| History by Picture - S | 0 | - | 4.14 | 28,011 |
| History by Picture - U | 0 | - | 4.25 | 25,359 |
| History by Picture - V | 0 | - | 4.31 | 25,344 |
| History by Picture - W | 0 | - | 4.01 | 21,839 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,902 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,948 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,877 |
| Flowers by Picture | 0 | - | 4.46 | 105,886 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,981 |
| Authors by Picture | 0 | - | 4.48 | 25,646 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 91,060 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 56,216 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,450 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 66,568 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 59,359 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,111 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,925 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,539 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,371 |
| Birds by Picture #1 | 0 | - | 4.47 | 42,105 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,600 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 165,842 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,807 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,710 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,399 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 72,169 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.14 | 79,820 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,881 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 96,168 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,372 |
| Name that Historical Figure #3 | 0 | - | 4.37 | 248,146 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 161,133 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 94,968 |
| Musicians by Picture #1 | 0 | - | 4.38 | 110,229 |
| Musicians by Picture #2 | 0 | - | 4.29 | 77,516 |
| Musicians by Picture #4 | 0 | - | 4.07 | 65,721 |
| Musicians by Picture #3 | 0 | - | 4.10 | 59,643 |
| Emoji Flags | 0 | - | 4.35 | 44,314 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.69 | 38,271 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,753 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,684 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 67,058 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 71,345 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,949 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 396,475 |
| Airline Logos | 0 | - | 4.45 | 141,520 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,440,467 |
| Fast Food Logos Quiz | 0 | - | 4.45 | 249,661 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 160,085 |
| Brand Logos That Start With M | 0 | - | 4.38 | 63,622 |
| Brand Logos That Start With S | 0 | - | 4.37 | 58,406 |
| Brand Logos That Start With B | 0 | - | 4.38 | 60,739 |
| Brand Logos That Start With D | 0 | - | 4.37 | 62,294 |
| Brand Logos That Start With L | 0 | - | 4.40 | 62,009 |
| Brand Logos That Start With C | 0 | - | 4.21 | 50,207 |
