| Spanish Animal Words | 0 | - | 4.53 | 95,403 |
| French-Speaking Countries | 0 | - | 4.85 | 268,973 |
| Animal Varieties Quiz #1 | 0 | - | 4.48 | 92,449 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,972 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,120 |
| Animal Stereotypes | 0 | - | 4.48 | 36,821 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,430 |
| Types of Bears | 0 | - | 4.51 | 143,126 |
| Deadly Animals | 0 | - | 4.03 | 109,925 |
| Famous Animals #1 | 0 | - | 4.03 | 238,866 |
| Famous Animals #2 | 0 | - | 4.02 | 57,334 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,156 |
| Animal Facts | 0 | - | 4.15 | 42,913 |
| Cat Knowledge | 0 | - | 4.49 | 25,725 |
| Bear Knowledge | 0 | - | 4.54 | 34,996 |
| Cow Knowledge | 0 | - | 4.46 | 24,172 |
| Elephant Knowledge | 0 | - | 4.41 | 23,906 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 55,999 |
| Human Taxonomy | 0 | - | 4.68 | 18,855 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,530 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,627 |
| French Food Words | 0 | - | 4.78 | 193,713 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,402 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,363 |
| Name that Bug | 0 | - | 4.12 | 45,460 |
| Pack Animals | 0 | - | 4.23 | 10,335 |
| Lion Trivia | 0 | - | 4.19 | 16,372 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,607 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,456 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,305 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,913 |
| Bird in the Answers | 0 | - | 4.10 | 33,306 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,112 |
| Horse Knowledge | 0 | - | 4.45 | 23,953 |
| Snake Knowledge | 0 | - | 4.49 | 18,733 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,853 |
| Animals that Start with L | 0 | - | 4.47 | 101,345 |
| Animals that Start with P | 0 | - | 4.45 | 85,722 |
| Animals that Start with S | 0 | - | 4.49 | 86,913 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,342 |
| Top World Languages | 0 | - | 4.92 | 813,854 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,557 |
| Words that are Animals | 0 | - | 3.88 | 41,417 |
| Extinct Animals | 0 | - | 4.18 | 27,415 |
| Primate Knowledge | 0 | - | 4.17 | 15,268 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,236 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,216 |
| Animals in the News | 0 | - | 4.37 | 26,724 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,396 |
| Largest Types of Birds | 0 | - | 4.19 | 26,901 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,691 |
| Fish Knowledge | 0 | - | 4.38 | 25,505 |
| Megadiverse Countries | 0 | - | 4.97 | 133,950 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,588 |
| Countries by Official Language | 0 | - | 4.95 | 192,896 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,597 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,025 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,299 |
| Countries in their Native Language | 0 | - | 4.99 | 196,748 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,638 |
| Official European Union Languages | 0 | - | 4.97 | 237,058 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,775 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,923 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,357 |
| Mammals in the Answer | 0 | - | 4.35 | 29,920 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,393 |
| Animals A-Z #2 | 0 | - | 4.11 | 66,064 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,531 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,774 |
| Animal Decoder | 0 | - | 4.06 | 15,469 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,203 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,230 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,619 |
| Animals that Start with A | 0 | - | 4.26 | 111,414 |
| Animals that Start with B | 0 | - | 4.31 | 113,240 |
| Animals that Start with C | 0 | - | 4.23 | 92,394 |
| Animals that Start with D | 0 | - | 4.25 | 86,538 |
| Animals that Start with E | 0 | - | 4.28 | 73,516 |
| Animals that Start with F | 0 | - | 4.28 | 106,650 |
| Animals that Start with G | 0 | - | 4.25 | 79,765 |
| Animals that Start with K | 0 | - | 4.06 | 66,268 |
| Animals that Start with M | 0 | - | 4.23 | 83,634 |
| Animals that Start with R | 0 | - | 4.27 | 87,047 |
| Animals that Start with T | 0 | - | 4.32 | 90,717 |
| Animals that Start with H | 0 | - | 4.31 | 85,953 |
| Animals that Start with O | 0 | - | 4.27 | 88,274 |
| Animals that Start with W | 0 | - | 4.35 | 46,899 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,399 |
| Countries with Fjords | 0 | - | 4.93 | 100,253 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,304 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,204 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,136 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,727 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,331 |
| German-Speaking Countries | 0 | - | 4.89 | 123,540 |
| Italian Name Translation | 0 | - | 4.81 | 45,195 |
| French Phrases used in English | 0 | - | 4.16 | 46,547 |
| Song Title Translation - French | 0 | - | 4.55 | 26,794 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,296 |
| World's Longest Rivers | 0 | - | 4.88 | 121,156 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,980 |
| English Speaking Countries | 0 | - | 4.64 | 356,140 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,398 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,758 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,586 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,682 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,175 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,296 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,867 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,346 |
| Proverbs Translated into French | 0 | - | 4.19 | 14,920 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,268 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,835 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,514 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,475 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,927 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,657 |
| Countries With No Rivers | 0 | - | 4.96 | 76,067 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,291 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,759 |
| North Sea Countries | 0 | - | 4.92 | 86,646 |
| Black Sea Countries | 0 | - | 4.87 | 60,357 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,043 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,136 |
| Seas on the World Map | 0 | - | 4.96 | 134,318 |
| Seas of the World | 0 | - | 5.00 | 154,549 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,346 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,972 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,310 |
| Name an Official Language A-Z | 0 | - | 4.91 | 174,879 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,708 |
| Animal Adjectives | 0 | - | 4.77 | 59,846 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,036 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,970 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,284 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,948 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,175 |
| Animals that Start with N | 0 | - | 3.73 | 31,433 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,346 |
| Geologic Time Scale | 0 | - | 4.46 | 9,930 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,276 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,707 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,791 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,968 |
| Random Name Translation | 0 | - | 4.52 | 42,149 |
| Slavic Languages | 0 | - | 4.67 | 54,024 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,439 |
| Translations of John | 0 | - | 4.53 | 26,837 |
| Count to 10 in Europe | 0 | - | 4.63 | 165,269 |
| Colors in Europe Quiz | 0 | - | 4.50 | 51,198 |
| European Greetings | 0 | - | 4.41 | 61,017 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,495 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,681 |
| Biggest Animals by Category | 0 | - | 4.18 | 72,961 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,660 |
| Animal Sounds | 0 | - | 4.26 | 191,208 |
| Animals of Australia | 0 | - | 4.52 | 42,170 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,267 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,220 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,919 |
| Animal Emojis | 0 | - | 4.69 | 83,379 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,127 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,962 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,801 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,926 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,173 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,906 |
| Birds in the Answer | 0 | - | 4.56 | 52,705 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,640 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,739 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,167 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,156 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,468 |
| Biggest Lakes in the World | 0 | - | 4.62 | 89,039 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,137 |
| Famous Rivers | 0 | - | 4.74 | 104,557 |
| City to River #1 | 0 | - | 4.59 | 35,749 |
| Most Populous River Basins | 0 | - | 4.61 | 39,555 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,131 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,963 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,782 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,253 |
| Flowers by Picture | 0 | - | 4.46 | 105,033 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,992 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,221 |
| Spanish Name Translation | 0 | - | 4.13 | 168,013 |
| Days of the Week in Europe | 0 | - | 4.53 | 29,701 |
| Spanish Food Words | 0 | - | 4.64 | 249,186 |
| Italian Food Words | 0 | - | 4.29 | 70,835 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,913 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,476 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,990 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,887 |
| Dog Knowledge | 0 | - | 4.46 | 34,189 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,980 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,031 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,918 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,330 |
| Biggest City by River | 0 | - | 4.41 | 52,706 |
| Rivers by City | 0 | - | 4.38 | 31,643 |
