| Former Countries by Territory Map | 0 | - | 4.96 | 96,617 |
| Empires by Maps | 0 | - | 4.98 | 110,800 |
| Video Game Logos Quiz | 0 | - | 4.37 | 163,830 |
| Islands by Shape #2 | 0 | - | 4.88 | 48,590 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 58,730 |
| All Country Flags of the World | 0 | - | 5.00 | 3,383,713 |
| Years in History by Picture | 0 | - | 4.43 | 33,347 |
| Famous Foreheads #1 | 0 | - | 4.45 | 71,840 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,478,086 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,063,633 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 712,676 |
| Name that Object #1 | 0 | - | 3.58 | 95,839 |
| Animals by Skeleton Image | 0 | - | 4.81 | 43,513 |
| Make a Stained Glass Window | 0 | - | 4.99 | 65,107 |
| Flags with Crescents | 0 | - | 4.98 | 159,528 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 97,017 |
| Country Flags with the Union Jack | 0 | - | 4.81 | 64,490 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 79,871 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 62,682 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.87 | 70,316 |
| Flag Maths | 0 | - | 4.91 | 55,913 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 48,800 |
| National Soccer Team Logos | 0 | - | 4.85 | 171,943 |
| Pokémon by Picture | 0 | - | 4.47 | 59,650 |
| Old Movies by Picture | 0 | - | 4.51 | 23,600 |
| Musical Instruments by Picture #2 | 0 | - | 4.23 | 45,479 |
| Random Logos Quiz | 0 | - | 4.32 | 201,627 |
| Pictures by Letter - A | 0 | - | 4.14 | 32,087 |
| Pictures by Letter - J | 0 | - | 4.28 | 38,669 |
| Pictures by Letter - B | 0 | - | 4.29 | 42,284 |
| Pictures by Letter - D | 0 | - | 4.18 | 36,249 |
| Pictures by Letter - M | 0 | - | 4.21 | 36,600 |
| Fruits by Picture | 0 | - | 4.17 | 773,057 |
| Geography by Picture - B | 0 | - | 4.41 | 54,532 |
| Geography by Picture - H | 0 | - | 4.49 | 57,236 |
| Geography by Picture - N | 0 | - | 4.44 | 41,348 |
| Geography by Picture - R | 0 | - | 4.55 | 40,226 |
| Geography by Picture - T | 0 | - | 4.54 | 56,887 |
| Flags to Languages | 0 | - | 4.95 | 167,780 |
| All North American Pro Sports Logos | 0 | - | 4.75 | 106,922 |
| History by Picture - G | 0 | - | 4.41 | 40,477 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 47,575 |
| Original 151 Pokémon | 0 | - | 4.95 | 765,327 |
| Name that Object #2 | 0 | - | 3.65 | 14,963 |
| Name that Object #3 | 0 | - | 3.98 | 13,999 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 52,474 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 60,069 |
| Car Logos Quiz #1 | 0 | - | 4.53 | 509,468 |
| Pictures by Letter - E | 0 | - | 3.47 | 33,500 |
| Pictures by Letter - C | 0 | - | 4.01 | 29,142 |
| Pictures by Letter - G | 0 | - | 4.10 | 27,039 |
| Pictures by Letter - L | 0 | - | 4.12 | 29,488 |
| Pictures by Letter - F | 0 | - | 4.15 | 27,885 |
| Pictures by Letter - Z | 0 | - | 4.10 | 22,675 |
| Pictures by Letter - Y | 0 | - | 4.19 | 25,347 |
| Pictures by Letter - R | 0 | - | 4.06 | 23,861 |
| Pictures by Letter - K | 0 | - | 4.14 | 24,197 |
| Pictures by Letter - I | 0 | - | 4.16 | 29,286 |
| Pictures by Letter - N | 0 | - | 4.11 | 23,602 |
| Pictures by Letter - P | 0 | - | 4.04 | 25,149 |
| Pictures by Letter - U | 0 | - | 4.07 | 19,951 |
| Pictures by Letter - T | 0 | - | 4.32 | 26,696 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 80,205 |
| All the Pokémon (#0001 to #1025) | 0 | - | 4.98 | 129,382 |
| Name that Bug | 0 | - | 4.11 | 44,958 |
| Islands by Shape #1 | 0 | - | 4.31 | 82,513 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 56,269 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 49,271 |
| Elements by Picture | 0 | - | 4.27 | 67,696 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.47 | 28,524 |
| Islands by Picture | 0 | - | 4.28 | 101,906 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 23,204 |
| Animals by Close-up Image | 0 | - | 4.41 | 212,799 |
| Mammals by Picture #3 | 0 | - | 4.44 | 59,846 |
| Aquatic Mammals by Picture | 0 | - | 4.42 | 43,597 |
| Extinct Animals by Picture | 0 | - | 4.48 | 33,585 |
| Mammals by Picture #1 | 0 | - | 4.75 | 88,388 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 46,785 |
| International Footballers by Picture | 0 | - | 4.49 | 51,396 |
| Name that Historical Figure #1 | 0 | - | 4.64 | 311,988 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 263,223 |
| Name that Historical Figure #5 | 0 | - | 4.42 | 100,028 |
| Geography by Picture - A | 0 | - | 4.37 | 59,136 |
| Geography by Picture - D | 0 | - | 4.14 | 44,811 |
| Geography by Picture - F | 0 | - | 4.30 | 50,080 |
| Geography by Picture - G | 0 | - | 4.39 | 47,122 |
| Geography by Picture - J | 0 | - | 4.15 | 37,754 |
| Geography by Picture - K | 0 | - | 4.28 | 32,449 |
| Geography by Picture - C | 0 | - | 4.30 | 56,132 |
| Geography by Picture - L | 0 | - | 4.36 | 57,910 |
| Geography by Picture - M | 0 | - | 4.12 | 39,768 |
| Geography by Picture - P | 0 | - | 4.22 | 41,706 |
| Geography by Picture - S | 0 | - | 4.36 | 46,276 |
| Random Flags Quiz | 0 | - | 4.41 | 271,221 |
| Country Flag Trivia | 0 | - | 4.80 | 52,227 |
| Satellite Images Quiz #1 | 0 | - | 4.49 | 127,312 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 107,499 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 87,566 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 48,537 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 37,921 |
| Cities by Picture #1 | 0 | - | 4.70 | 82,960 |
| Soccer Team Logos | 0 | - | 4.26 | 357,357 |
| Ultimate Car Logos Quiz | 0 | - | 4.75 | 161,248 |
| Car Logos Quiz #2 | 0 | - | 4.42 | 249,754 |
| Movie Logos | 0 | - | 4.32 | 225,499 |
| Brand Logos That Start With M | 0 | - | 4.43 | 57,860 |
| Brand Logos That Start With L | 0 | - | 4.41 | 56,384 |
| Brand Logos That Start with A | 0 | - | 4.51 | 65,406 |
| History by Picture - A | 0 | - | 4.24 | 43,907 |
| History by Picture - B | 0 | - | 4.38 | 46,935 |
| History by Picture - C | 0 | - | 4.36 | 52,322 |
| History by Picture - F | 0 | - | 4.33 | 36,215 |
| History by Picture - D | 0 | - | 4.30 | 42,489 |
| History by Picture - E | 0 | - | 4.27 | 42,180 |
| History by Picture - H | 0 | - | 4.36 | 35,280 |
| History by Picture - K | 0 | - | 4.37 | 31,993 |
| History by Picture - M | 0 | - | 4.15 | 34,778 |
| History by Picture - N | 0 | - | 4.39 | 39,717 |
| History by Picture - O | 0 | - | 4.38 | 34,825 |
| History by Picture - T | 0 | - | 4.28 | 32,031 |
| Name that Nut, Seed, or Bean | 0 | - | 4.62 | 54,723 |
| Countries of the World in Plague Inc. | 0 | - | 4.52 | 28,582 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 139,048 |
| Brand Logos Quiz #1 | 0 | - | 4.81 | 2,319,977 |
| Art Works Picture Quiz #1 | 0 | - | 4.52 | 114,332 |
| Art Works Picture Quiz #2 | 0 | - | 4.48 | 95,252 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 264,192 |
| Foods by Picture | 0 | - | 3.80 | 222,476 |
| Flowers by Picture | 0 | - | 4.47 | 103,659 |
| Junk Foods by Picture | 0 | - | 3.69 | 93,789 |
| Art Works Picture Quiz #3 | 0 | - | 4.43 | 46,829 |
| Christmas by Picture | 0 | - | 4.25 | 27,821 |
| Hats by Picture | 0 | - | 4.21 | 17,672 |
| Weapons by Picture | 0 | - | 4.11 | 20,319 |
| Cars by Picture | 0 | - | 3.91 | 39,532 |
| Reptile Picture Quiz | 0 | - | 4.30 | 13,862 |
| Authors by Picture | 0 | - | 4.47 | 24,873 |
| Plants by Picture | 0 | - | 4.20 | 13,982 |
| Fruit and Vegetable Emojis | 0 | - | 4.41 | 70,394 |
| WWII Figures by Picture | 0 | - | 4.83 | 47,384 |
| College Sports Logos Quiz #3 | 0 | - | 4.29 | 51,907 |
| Planets By Picture Quiz | 0 | - | 4.50 | 53,556 |
| Songs by Picture Quiz #1 | 0 | - | 4.70 | 62,890 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 56,259 |
| Fish by Picture #1 | 0 | - | 4.41 | 106,307 |
| Animals A-Z by Picture | 0 | - | 4.10 | 64,025 |
| Mammals by Picture #4 | 0 | - | 4.04 | 32,900 |
| Birds by Picture #1 | 0 | - | 4.46 | 39,140 |
| Mammals by Picture #2 | 0 | - | 4.30 | 56,344 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.26 | 68,369 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.24 | 49,911 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 49,981 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.18 | 69,430 |
| 1980s Celebrities by Picture #1 | 0 | - | 4.02 | 59,846 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 77,248 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.13 | 69,910 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.17 | 91,525 |
| Women in History by Picture | 0 | - | 4.32 | 25,044 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,032 |
| Famous Foreheads #2 | 0 | - | 3.19 | 15,271 |
| Name that Historical Figure #3 | 0 | - | 4.39 | 228,057 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 150,678 |
| Name that Historical Figure #6 | 0 | - | 4.25 | 86,796 |
| Musicians by Picture #1 | 0 | - | 4.38 | 101,123 |
| Musicians by Picture #2 | 0 | - | 4.24 | 70,918 |
| Musicians by Picture #4 | 0 | - | 4.05 | 60,788 |
| Musicians by Picture #3 | 0 | - | 4.08 | 55,919 |
| Geography by Picture - E | 0 | - | 3.54 | 46,760 |
| Landforms by Picture | 0 | - | 4.35 | 20,022 |
| Geography by Picture - I | 0 | - | 3.98 | 38,828 |
| Emoji Flags | 0 | - | 4.36 | 42,825 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 72,455 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 63,457 |
| Islands by Satellite Image #1 | 0 | - | 4.74 | 67,775 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,120 |
| Landmarks Picture Quiz #1 | 0 | - | 4.17 | 373,590 |
| Airline Logos | 0 | - | 4.44 | 136,717 |
| Fast Food Logos Quiz | 0 | - | 4.42 | 240,919 |
| Mostly-American Candy Logos | 0 | - | 4.10 | 152,126 |
| Brand Logos That Start With S | 0 | - | 4.39 | 53,227 |
| Brand Logos That Start With B | 0 | - | 4.40 | 56,110 |
| Brand Logos That Start With D | 0 | - | 4.33 | 57,448 |
| Brand Logos That Start With C | 0 | - | 4.15 | 46,568 |
| Pictures by Letter - H | 0 | - | 3.92 | 29,535 |
| Pictures by Letter - O | 0 | - | 3.95 | 27,892 |
| Pictures by Letter - Q | 0 | - | 3.88 | 19,690 |
| Pictures by Letter - S | 0 | - | 3.80 | 20,149 |
| Pictures by Letter - W | 0 | - | 3.92 | 19,430 |
| Pictures by Letter - V | 0 | - | 3.95 | 17,290 |
| History by Picture - I | 0 | - | 4.26 | 25,087 |
| History by Picture - J | 0 | - | 4.21 | 25,585 |
| History by Picture - L | 0 | - | 4.21 | 29,573 |
| History by Picture - P | 0 | - | 4.07 | 24,276 |
| History by Picture - Q | 0 | - | 4.02 | 21,188 |
| History by Picture - R | 0 | - | 4.11 | 25,710 |
| History by Picture - S | 0 | - | 4.11 | 26,716 |
| History by Picture - U | 0 | - | 4.23 | 24,088 |
| History by Picture - V | 0 | - | 4.28 | 24,067 |
| Vegetables by Picture | 0 | - | 4.40 | 59,914 |
| Pick a Picture - Musical Instruments | 0 | - | 4.53 | 49,963 |
