| French Animal Words | 0 | - | 4.44 | 133,810 |
| Spanish Animal Words | 0 | - | 4.53 | 95,408 |
| Animal Varieties Quiz #1 | 0 | - | 4.48 | 92,455 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,973 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,123 |
| Animal Stereotypes | 0 | - | 4.48 | 36,830 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,430 |
| Deadly Animals | 0 | - | 4.03 | 109,928 |
| Famous Animals #1 | 0 | - | 4.03 | 238,869 |
| Famous Animals #2 | 0 | - | 4.02 | 57,334 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,157 |
| Animal Facts | 0 | - | 4.15 | 42,915 |
| Cat Knowledge | 0 | - | 4.49 | 25,725 |
| Cow Knowledge | 0 | - | 4.46 | 24,175 |
| Elephant Knowledge | 0 | - | 4.41 | 23,906 |
| Human Taxonomy | 0 | - | 4.68 | 18,856 |
| Types of Bears | 0 | - | 4.51 | 143,129 |
| Bear Knowledge | 0 | - | 4.54 | 34,997 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,000 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,407 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,365 |
| 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 | 19,608 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,458 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,307 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,915 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,531 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,638 |
| Bird in the Answers | 0 | - | 4.10 | 33,310 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,112 |
| Horse Knowledge | 0 | - | 4.45 | 23,953 |
| Snake Knowledge | 0 | - | 4.49 | 18,738 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,862 |
| Animals that Start with L | 0 | - | 4.47 | 101,415 |
| Animals that Start with P | 0 | - | 4.45 | 85,742 |
| Animals that Start with S | 0 | - | 4.49 | 86,932 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,377 |
| Top World Languages | 0 | - | 4.92 | 814,010 |
| Words that are Animals | 0 | - | 3.88 | 41,419 |
| Extinct Animals | 0 | - | 4.18 | 27,417 |
| Primate Knowledge | 0 | - | 4.17 | 15,269 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,237 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,217 |
| Animals in the News | 0 | - | 4.37 | 26,727 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,397 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,580 |
| Largest Types of Birds | 0 | - | 4.19 | 26,903 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,691 |
| Fish Knowledge | 0 | - | 4.38 | 25,506 |
| Megadiverse Countries | 0 | - | 4.97 | 133,961 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,597 |
| Countries by Official Language | 0 | - | 4.95 | 192,921 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,620 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,039 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,337 |
| Countries in their Native Language | 0 | - | 4.99 | 196,775 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,656 |
| Official European Union Languages | 0 | - | 4.97 | 237,092 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,899 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,941 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,357 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,072 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,234 |
| Animals that Start with A | 0 | - | 4.26 | 111,512 |
| Animals that Start with B | 0 | - | 4.31 | 113,270 |
| Animals that Start with C | 0 | - | 4.23 | 92,422 |
| Animals that Start with D | 0 | - | 4.25 | 86,566 |
| Animals that Start with E | 0 | - | 4.28 | 73,539 |
| Animals that Start with F | 0 | - | 4.28 | 106,668 |
| Animals that Start with G | 0 | - | 4.25 | 79,791 |
| Animals that Start with K | 0 | - | 4.06 | 66,284 |
| Animals that Start with M | 0 | - | 4.23 | 83,658 |
| Animals that Start with R | 0 | - | 4.27 | 87,056 |
| Animals that Start with T | 0 | - | 4.32 | 90,731 |
| Animals that Start with H | 0 | - | 4.31 | 85,971 |
| Animals that Start with O | 0 | - | 4.27 | 88,292 |
| Animals that Start with W | 0 | - | 4.35 | 46,914 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,690 |
| Mammals in the Answer | 0 | - | 4.35 | 29,922 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,405 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,533 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,774 |
| Animal Decoder | 0 | - | 4.06 | 15,471 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,204 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,623 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,408 |
| Countries with Fjords | 0 | - | 4.93 | 100,259 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,313 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,207 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,158 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,737 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,346 |
| German-Speaking Countries | 0 | - | 4.89 | 123,547 |
| Italian Name Translation | 0 | - | 4.81 | 45,217 |
| French-Speaking Countries | 0 | - | 4.85 | 269,007 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,298 |
| World's Longest Rivers | 0 | - | 4.88 | 121,182 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,022 |
| English Speaking Countries | 0 | - | 4.64 | 356,161 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,408 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,772 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,639 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,697 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,180 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,303 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,882 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,360 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,274 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,484 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,315 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,836 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,516 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,936 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,676 |
| Countries With No Rivers | 0 | - | 4.96 | 76,071 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,304 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,766 |
| North Sea Countries | 0 | - | 4.92 | 86,652 |
| Black Sea Countries | 0 | - | 4.87 | 60,360 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,046 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,142 |
| Seas on the World Map | 0 | - | 4.96 | 134,411 |
| Seas of the World | 0 | - | 5.00 | 154,588 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,370 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,975 |
| Name an Official Language A-Z | 0 | - | 4.91 | 174,899 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,719 |
| Animal Adjectives | 0 | - | 4.77 | 59,850 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,042 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,983 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,293 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,955 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,188 |
| Animals that Start with N | 0 | - | 3.73 | 31,445 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,347 |
| Geologic Time Scale | 0 | - | 4.46 | 9,931 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,279 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,712 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,811 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,969 |
| Random Name Translation | 0 | - | 4.52 | 42,151 |
| Slavic Languages | 0 | - | 4.67 | 54,027 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,441 |
| Translations of John | 0 | - | 4.53 | 26,842 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,499 |
| French Food Words | 0 | - | 4.78 | 193,755 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,688 |
| Biggest Animals by Category | 0 | - | 4.18 | 72,962 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,664 |
| Animal Sounds | 0 | - | 4.26 | 191,224 |
| Animals of Australia | 0 | - | 4.52 | 42,173 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,269 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,228 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,924 |
| Animal Emojis | 0 | - | 4.70 | 83,395 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,136 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,971 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,803 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,930 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,185 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,910 |
| Birds in the Answer | 0 | - | 4.56 | 52,709 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,642 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,739 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,170 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,156 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,469 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,042 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,140 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,194 |
| Famous Rivers | 0 | - | 4.74 | 104,562 |
| City to River #1 | 0 | - | 4.59 | 35,753 |
| Most Populous River Basins | 0 | - | 4.61 | 39,559 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,136 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,968 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,783 |
| Flowers by Picture | 0 | - | 4.46 | 105,042 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,049 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,236 |
| Spanish Name Translation | 0 | - | 4.13 | 168,019 |
| Spanish Food Words | 0 | - | 4.64 | 249,230 |
| Italian Food Words | 0 | - | 4.29 | 70,840 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,915 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,479 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,997 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,893 |
| Dog Knowledge | 0 | - | 4.46 | 34,196 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,981 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,039 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,919 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,335 |
| Biggest City by River | 0 | - | 4.41 | 52,707 |
| Rivers by City | 0 | - | 4.38 | 31,644 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,808 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,928 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,262 |
| Plants by Picture | 0 | - | 4.24 | 14,355 |
| Trees in the Answer | 0 | - | 4.25 | 45,752 |
