| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,045 |
| Rappers by Picture | 0 | - | 4.22 | 132,956 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,721 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,734 |
| Empires by Maps | 0 | - | 4.98 | 118,717 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,542 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,440 |
| Songs by Picture Quiz #2 | 0 | - | 4.41 | 58,471 |
| Pick a Picture - Musical Instruments | 0 | - | 4.53 | 51,896 |
| Cities with the Most Opera Performances | 0 | - | 4.61 | 40,626 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,311 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,428 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,146 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,400 |
| All Country Flags of the World | 0 | - | 5.00 | 3,609,147 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,019 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,933 |
| Play-Doh People from History | 0 | - | 4.99 | 93,967 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,385 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,799 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,956 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,093 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,609 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,005 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,102 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,885 |
| Musicians by Picture #5 | 0 | - | 3.93 | 53,765 |
| Flags with Crescents | 0 | - | 4.98 | 167,792 |
| Country Flag Trivia | 0 | - | 4.81 | 56,032 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,554 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,552 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,066 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,544 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,459 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 59,977 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,129 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,742 |
| National Football Team Logos | 0 | - | 4.84 | 178,876 |
| Countries by National Anthem | 0 | - | 4.93 | 71,049 |
| Years in History by Picture | 0 | - | 4.44 | 35,153 |
| Where Are These Doors? | 0 | - | 4.45 | 29,624 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,294 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,838 |
| Flags to Languages | 0 | - | 4.95 | 172,638 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,167 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,367 |
| Fruits by Picture | 0 | - | 4.20 | 804,960 |
| Old Movies by Picture | 0 | - | 4.51 | 24,841 |
| Name that Object #1 | 0 | - | 3.56 | 96,325 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,907 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,732 |
| Geography by Picture - B | 0 | - | 4.42 | 55,436 |
| Geography by Picture - H | 0 | - | 4.50 | 58,070 |
| Geography by Picture - N | 0 | - | 4.45 | 42,066 |
| Geography by Picture - R | 0 | - | 4.55 | 40,892 |
| Geography by Picture - T | 0 | - | 4.54 | 57,697 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,513 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,810 |
| Random Logos Quiz | 0 | - | 4.31 | 207,175 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,489 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,158 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,752 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,653 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,343 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,547 |
| Name that Bug | 0 | - | 4.12 | 45,461 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,197 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,651 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,440 |
| Elements by Picture | 0 | - | 4.28 | 69,604 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,173 |
| Islands by Picture | 0 | - | 4.29 | 106,019 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,076 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,042 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,850 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,884 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,987 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,294 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,958 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,189 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,798 |
| International Footballers by Picture | 0 | - | 4.50 | 54,850 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,877 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,745 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,350 |
| Geography by Picture - A | 0 | - | 4.39 | 60,066 |
| Geography by Picture - D | 0 | - | 4.15 | 45,517 |
| Geography by Picture - F | 0 | - | 4.31 | 50,846 |
| Geography by Picture - G | 0 | - | 4.38 | 47,813 |
| Geography by Picture - J | 0 | - | 4.16 | 38,349 |
| Geography by Picture - K | 0 | - | 4.29 | 33,031 |
| Geography by Picture - C | 0 | - | 4.31 | 56,931 |
| Geography by Picture - L | 0 | - | 4.37 | 58,783 |
| Geography by Picture - M | 0 | - | 4.14 | 40,356 |
| Geography by Picture - P | 0 | - | 4.24 | 42,318 |
| Geography by Picture - S | 0 | - | 4.38 | 46,930 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,628 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,592 |
| Flag Maths | 0 | - | 4.78 | 57,687 |
| Satellite Images #1 | 0 | - | 4.46 | 129,058 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,025 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,679 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,680 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,826 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,433 |
| Soccer Team Logos | 0 | - | 4.26 | 371,235 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,404,426 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 176,697 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,535 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,815 |
| Movie Logos | 0 | - | 4.33 | 236,184 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,882 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,297 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,394 |
| History by Picture - A | 0 | - | 4.25 | 45,493 |
| History by Picture - B | 0 | - | 4.40 | 48,617 |
| History by Picture - C | 0 | - | 4.36 | 54,127 |
| History by Picture - F | 0 | - | 4.35 | 37,621 |
| History by Picture - G | 0 | - | 4.40 | 41,883 |
| History by Picture - D | 0 | - | 4.29 | 44,046 |
| History by Picture - E | 0 | - | 4.27 | 43,662 |
| History by Picture - H | 0 | - | 4.37 | 36,573 |
| History by Picture - K | 0 | - | 4.35 | 33,138 |
| History by Picture - M | 0 | - | 4.17 | 35,938 |
| History by Picture - N | 0 | - | 4.40 | 41,029 |
| History by Picture - O | 0 | - | 4.39 | 36,071 |
| History by Picture - T | 0 | - | 4.20 | 33,121 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,910 |
| Musicians Who Died Young | 0 | - | 4.39 | 107,555 |
| 2000s Music Trivia #1 | 0 | - | 4.04 | 66,731 |
| 2000s Music Trivia #2 | 0 | - | 4.19 | 52,598 |
| 1990s Music Trivia #1 | 0 | - | 4.28 | 50,603 |
| 1990s Music Trivia #2 | 0 | - | 4.06 | 35,556 |
| Twelve Days of Christmas | 0 | - | 4.45 | 145,610 |
| Piano Man Lyrics Quiz | 0 | - | 4.92 | 82,134 |
| Rudolph the Red-Nosed Reindeer | 0 | - | 4.53 | 76,027 |
| We Didn't Start the Fire Lyrics | 0 | - | 4.93 | 48,487 |
| Songs From Movies | 0 | - | 4.35 | 65,582 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,541 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,759 |
| Flowers by Picture | 0 | - | 4.46 | 105,042 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,557 |
| Name that Object #2 | 0 | - | 3.64 | 15,339 |
| Authors by Picture | 0 | - | 4.48 | 25,405 |
| Name that Object #3 | 0 | - | 3.93 | 14,314 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,575 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,607 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,205 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,271 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,137 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,972 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,805 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,931 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,188 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,911 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,502 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,066 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,157 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 50,949 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,292 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,041 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 71,994 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,674 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,952 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 237,825 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,151 |
| Name that Historical Figure #6 | 0 | - | 4.27 | 92,508 |
| Emoji Flags | 0 | - | 4.35 | 43,846 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,073 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,509 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,243 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,262 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,795 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,158 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,681 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,165 |
| Airline Logos | 0 | - | 4.45 | 140,036 |
| Fast Food Logos Quiz | 0 | - | 4.43 | 247,126 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 157,988 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,830 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,790 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,303 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,096 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,302 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,945 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,358 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,835 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,319 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,129 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,607 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,947 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,201 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,343 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,889 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,640 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,506 |
| Vegetables by Picture | 0 | - | 4.39 | 62,920 |
| Music by Year, 1990–2009 | 0 | - | 4.20 | 109,445 |
| Music by Year, 1970–1989 | 0 | - | 4.31 | 40,967 |
| Basic Orchestral Instruments | 0 | - | 4.27 | 164,964 |
