| French Animal Words | 0 | - | 4.44 | 133,601 |
| Spanish to English Country Names | 0 | - | 4.85 | 31,934 |
| Animal Varieties Quiz #1 | 0 | - | 4.48 | 92,363 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,953 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,062 |
| Animal Stereotypes | 0 | - | 4.48 | 36,719 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,016 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,218 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,713 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,387 |
| Types of Bears | 0 | - | 4.51 | 143,063 |
| Deadly Animals | 0 | - | 4.03 | 109,857 |
| Famous Animals #1 | 0 | - | 4.03 | 238,767 |
| Famous Animals #2 | 0 | - | 4.02 | 57,314 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,140 |
| Animal Facts | 0 | - | 4.15 | 42,902 |
| Cat Knowledge | 0 | - | 4.49 | 25,713 |
| Bear Knowledge | 0 | - | 4.54 | 34,976 |
| Cow Knowledge | 0 | - | 4.46 | 24,157 |
| Elephant Knowledge | 0 | - | 4.41 | 23,896 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 55,962 |
| Human Taxonomy | 0 | - | 4.68 | 18,828 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,497 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,531 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,373 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,345 |
| Name that Bug | 0 | - | 4.12 | 45,438 |
| Pack Animals | 0 | - | 4.23 | 10,330 |
| Lion Trivia | 0 | - | 4.19 | 16,363 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,590 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,436 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,295 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,904 |
| Bird in the Answers | 0 | - | 4.10 | 33,232 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,092 |
| Horse Knowledge | 0 | - | 4.45 | 23,931 |
| Snake Knowledge | 0 | - | 4.49 | 18,720 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,763 |
| Animals that Start with L | 0 | - | 4.47 | 101,207 |
| Animals that Start with P | 0 | - | 4.45 | 85,604 |
| Animals that Start with S | 0 | - | 4.49 | 86,771 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,909 |
| Top World Languages | 0 | - | 4.92 | 812,264 |
| Spanish Food Words | 0 | - | 4.64 | 248,660 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,404 |
| Spanish Name Translation | 0 | - | 4.14 | 167,916 |
| Words that are Animals | 0 | - | 3.88 | 41,404 |
| Extinct Animals | 0 | - | 4.18 | 27,396 |
| Primate Knowledge | 0 | - | 4.17 | 15,262 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,221 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,207 |
| Animals in the News | 0 | - | 4.37 | 26,709 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,383 |
| Largest Types of Birds | 0 | - | 4.19 | 26,885 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,676 |
| Fish Knowledge | 0 | - | 4.38 | 25,480 |
| Megadiverse Countries | 0 | - | 4.97 | 133,842 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,379 |
| Countries by Official Language | 0 | - | 4.95 | 192,631 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,309 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,914 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,946 |
| Countries in their Native Language | 0 | - | 4.99 | 196,507 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,540 |
| Official European Union Languages | 0 | - | 4.97 | 236,396 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,620 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,682 |
| Song Title Translation - Spanish | 0 | - | 4.56 | 35,699 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,331 |
| Mammals in the Answer | 0 | - | 4.35 | 29,915 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,275 |
| Animals A-Z #2 | 0 | - | 4.11 | 66,022 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,511 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,755 |
| Animal Decoder | 0 | - | 4.06 | 15,456 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,176 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,596 |
| Animals that Start with A | 0 | - | 4.26 | 111,188 |
| Animals that Start with B | 0 | - | 4.31 | 112,675 |
| Animals that Start with C | 0 | - | 4.23 | 92,171 |
| Animals that Start with D | 0 | - | 4.25 | 86,099 |
| Animals that Start with E | 0 | - | 4.28 | 73,349 |
| Animals that Start with F | 0 | - | 4.28 | 106,477 |
| Animals that Start with G | 0 | - | 4.25 | 79,638 |
| Animals that Start with K | 0 | - | 4.06 | 66,158 |
| Animals that Start with M | 0 | - | 4.24 | 83,524 |
| Animals that Start with R | 0 | - | 4.27 | 86,593 |
| Animals that Start with T | 0 | - | 4.32 | 90,606 |
| Animals that Start with H | 0 | - | 4.31 | 85,844 |
| Animals that Start with O | 0 | - | 4.27 | 88,186 |
| Animals that Start with W | 0 | - | 4.35 | 46,808 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,346 |
| Countries with Fjords | 0 | - | 4.93 | 100,169 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,251 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,155 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,653 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,255 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,603 |
| Spanish Loan Words | 0 | - | 4.23 | 45,757 |
| German-Speaking Countries | 0 | - | 4.89 | 123,483 |
| French-Speaking Countries | 0 | - | 4.85 | 268,650 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,289 |
| World's Longest Rivers | 0 | - | 4.87 | 120,988 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,639 |
| English Speaking Countries | 0 | - | 4.64 | 355,923 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,349 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,613 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,300 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,560 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,039 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,223 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,827 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,502 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,414 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,798 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,559 |
| Countries With No Rivers | 0 | - | 4.96 | 75,997 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,185 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,728 |
| North Sea Countries | 0 | - | 4.92 | 86,574 |
| Black Sea Countries | 0 | - | 4.87 | 60,312 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,988 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,084 |
| Seas on the World Map | 0 | - | 4.96 | 133,739 |
| Seas of the World | 0 | - | 5.00 | 154,142 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,932 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,229 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,618 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,562 |
| Animal Adjectives | 0 | - | 4.77 | 59,813 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,932 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,508 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,194 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,887 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,051 |
| Animals that Start with N | 0 | - | 3.73 | 31,341 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,324 |
| Geologic Time Scale | 0 | - | 4.46 | 9,906 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,195 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,661 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,645 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,848 |
| Random Name Translation | 0 | - | 4.52 | 42,099 |
| Slavic Languages | 0 | - | 4.67 | 53,940 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,414 |
| Translations of John | 0 | - | 4.53 | 26,796 |
| Italian Name Translation | 0 | - | 4.81 | 44,930 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,400 |
| French Food Words | 0 | - | 4.78 | 193,409 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,619 |
| Biggest Animals by Category | 0 | - | 4.18 | 72,923 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,575 |
| Animal Sounds | 0 | - | 4.26 | 191,100 |
| Animals of Australia | 0 | - | 4.52 | 42,137 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,235 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,193 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,874 |
| Animal Emojis | 0 | - | 4.69 | 83,244 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,041 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,849 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,737 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,874 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,063 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,817 |
| Birds in the Answer | 0 | - | 4.56 | 52,684 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,602 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,729 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,146 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,139 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,443 |
| Biggest Lakes in the World | 0 | - | 4.62 | 88,965 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,085 |
| Famous Rivers | 0 | - | 4.74 | 104,478 |
| City to River #1 | 0 | - | 4.59 | 35,741 |
| Most Populous River Basins | 0 | - | 4.61 | 39,535 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,098 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,899 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,731 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,140 |
| Flowers by Picture | 0 | - | 4.46 | 104,990 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,401 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,034 |
| Italian Food Words | 0 | - | 4.29 | 70,743 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,889 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,457 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,912 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,810 |
| Dog Knowledge | 0 | - | 4.46 | 34,159 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,978 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,975 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,905 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,299 |
| Biggest City by River | 0 | - | 4.41 | 52,686 |
| Rivers by City | 0 | - | 4.38 | 31,625 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,751 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,917 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,057 |
| Plants by Picture | 0 | - | 4.24 | 14,331 |
| Trees in the Answer | 0 | - | 4.25 | 45,726 |
