| 34,540 | Dog Knowledge |
| 34,493 | Words Containing Animals #2 |
| 34,404 | Animal Ranges With Whammies |
| 34,329 | Mammals by Picture #4 |
| 33,939 | Bird in the Answers |
| 33,810 | North American Cat-Named Sports Teams |
| 33,588 | European Physical Geography |
| 33,454 | Rivers in History |
| 33,463 | Birds by Picture #3 |
| 33,186 | Countries With The Most Bird Species |
| 32,848 | Rivers A-Z |
| 32,670 | Countries with the Most Lakes Over 100 Km² |
| 32,376 | Animals With Color in their Names |
| 31,984 | South American Animals - Sudden Death |
| 31,827 | Animals that Start with N |
| 31,810 | African Physical Geography |
| 31,771 | Rivers by City |
| 31,761 | Australian Animals By Picture |
| 30,569 | UK Rivers Map Quiz |
| 30,488 | Famous Pets |
| 30,390 | Gulfs and Bays on the World Map |
| 30,140 | Largest Lakes in the United States on a Map |
| 29,994 | Mammals in the Answer |
| 29,946 | U.S States with the Most Cows |
| 29,363 | Marketing Slogans for Animals |
| 29,330 | Countries with the Longest Coastline Bordering Each Other |
| 29,293 | Where Does It Grow? Click Quiz #2 |
| 28,988 | Streets with Tree Names |
| 28,722 | Bodies of Water by Cities |
| 28,708 | Word Puzzles - Animals #1 |
| 28,465 | Animals - Taxonomy to Common Name |
| 28,304 | Earliest Domestication of Animals |
| 28,105 | Animals in American History |
| 28,097 | Trace the Coast and International Borders of the USA |
| 28,046 | Songs with Animals in the Title #2 |
| 28,033 | Famous Dogs |
| 27,624 | Brand Logos Featuring Animals |
| 27,573 | Extinct Animals |
| 27,027 | People with Animal Names Quiz #2 |
| 27,017 | Largest Types of Birds |
| 26,869 | U.S. States by Landform Quiz |
| 26,834 | Animals in the News |
| 26,804 | Name the Sea from a Clue |
| 26,605 | Cities on the Mediterranean Sea by a Clue |
| 26,552 | Countries with Wild Lions |
| 26,531 | Animals: Largest Predators in Each U.S. State |
| 26,483 | U.S. States with the Most Venomous Snake Species |
| 26,214 | Fictional Birds by Picture |
| 26,207 | City to River #2 - Difficult |
| 26,085 | Animals in British History |
| 26,033 | Landforms by Description Quiz |
| 26,063 | Name an Animal A-Z |
| 25,874 | Cat Knowledge |
| 25,793 | Animals by Range on a World Map |
| 25,736 | Fish Knowledge |
| 25,135 | The Five Oceans Map Quiz |
| 24,911 | Word Puzzles - Animals #2 |
| 24,891 | Animals that Appear on a Coat of Arms |
| 24,809 | The Shark Quiz!! |
| 24,309 | Cow Knowledge |
| 24,125 | Horse Knowledge |
| 24,071 | Famous Lakes Quiz |
| 24,004 | Elephant Knowledge |
| 23,859 | 3 and 4 Letter Birds |
| 23,595 | Countries by Coastline Per Capita |
| 23,280 | Animal Group Names |
| 23,240 | Countries Bordering the Four Color Seas |
| 22,857 | Countries With Two or More Bear Species |
| 22,793 | Horse Vocabulary |
| 22,764 | Texas Rivers Map Quiz |
| 22,735 | Rivers on Borders |
| 22,729 | Animals: No Vowels #2 |
| 22,519 | Top 10 U.S. States With the Most Endemic Species |
| 22,286 | Indian Ocean General Knowledge |
| 22,223 | Dinosaur Trivia |
| 21,744 | Terrestrial Biomes - Map Quiz |
| 21,504 | U.S. State Birds |
| 21,448 | Old World... or New World? |
| 21,351 | U.S. States with Shortest Maximum Distances to the Ocean |
| 21,305 | Atlantic Ocean General Knowledge |
| 21,165 | U.S. State Capitals Closest to the Great Lakes |
| 20,317 | Largest Land Animals of the Americas |
| 20,076 | Add an Animal - Make a Word |
| 19,797 | Bodies of Water by Satellite Image #2 |
| 19,819 | Birds - Picture Click Quiz |
| 19,719 | Mammal Knowledge #1 |
| 19,241 | Lakes in the United States by Clue |
| 18,994 | Asian Countries with NO Wolves |
| 18,987 | Human Taxonomy |
| 18,867 | Snake Knowledge |
| 18,738 | Fish by Picture #2 |
| 18,557 | Mammal Knowledge #2 |
| 18,485 | Famous Trees in Nature and Fiction |
| 18,472 | U.S. State Capitals Closest to the Mississippi River |
| 18,399 | South American Physical Geography |
| 18,305 | U.S. States Bordering the Great Lakes |
| 18,109 | Books with Animals in the Title #2 |
| 18,091 | Famous Cats |
| 17,812 | Sea Creatures by Picture |
| 17,355 | Human Biology Multiple Choice Quiz #2 |
| 17,311 | 3 and 4 Letter Trees |
| 16,435 | Lion Trivia |
| 16,419 | Northernmost Monkey Populations |
| 16,080 | Largest Rivers by Discharge |
| 15,863 | Fish - Sudden Death |
| 15,778 | Bird Knowledge #1 |
| 15,590 | Animal Decoder |
| 15,506 | Multiple Choice Animal Quiz #2 |
| 15,350 | Where Do Musk Oxen Live? |
| 15,344 | Primate Knowledge |
| 15,276 | U.S. States by Five Longest Rivers |
| 14,520 | Plants by Picture |
| 14,394 | U.S. States with the Most Endangered Species |
| 14,375 | Reptile Picture Quiz |
| 14,348 | Animals by Wikipedia Description |
| 14,238 | Bird Knowledge #2 |
| 13,839 | Longest Rivers in the UK |
| 13,634 | Dog Breeds recognized by the American Kennel Club |
| 12,809 | Largest Land Animals of Africa |
| 12,726 | Oceania Physical Geography |
| 12,609 | Four Letter Mammals Quiz |
| 12,446 | Insect Knowledge #1 |
| 12,433 | Turkey (The Bird) |
| 11,924 | Three Letter Mammals Quiz |
| 11,824 | Human Biology Multiple Choice Quiz #1 |
| 11,521 | World Bee Day Quiz |
| 11,427 | Insects - Sudden Death |
| 11,180 | Huge List of Famous Lakes |
| 11,149 | Animals Word Search |
| 11,124 | 100 Animals by Picture |
| 10,429 | Pack Animals |
| 10,063 | Geologic Time Scale |
| 9,848 | 100 Longest Rivers in North America - with a Map |
| 9,643 | Animals by Alternate Etymology |
| 9,009 | Insect Knowledge #2 |
| 8,761 | Which Great Lake? – Click Quiz |
| 8,756 | Reptiles - Sudden Death |
| 8,343 | Largest Land Animals of Asia |
| 8,094 | Seas of the World - Map Quiz |
| 7,680 | Marine Animals - Sudden Death |
| 7,255 | Animals Word Search #2 |
| 7,237 | Straits on the World Map |
| 7,191 | Flying Animals - Sudden Death |
| 7,039 | Top Average States Wage Earnings |
| 6,867 | Ultimate Rivers of the UK (with map) |
| 6,739 | Countries With Most Dogs |
| 6,709 | Click the Scary Animal in the Movie |
| 6,472 | Great Lakes - Map Quiz |
| 5,898 | True or False: Animals - Sudden Death |
| 5,882 | Longest U.S. Rivers on a Map |
| 5,606 | European Bodies of Water (with Map!) |
| 5,535 | Fastest Animals |
| 5,443 | Animal Silhouettes - Map Quiz |
| 5,431 | Egg Laying Animals - Sudden Death |
| 5,328 | Five Countries with the Shortest Coastline by Continent |
| 5,151 | Amphibians - Sudden Death |
| 5,054 | 100 Longest Rivers in the World - with a Map |
| 5,050 | Dinosaurs - Sudden Death |
| 4,864 | Solve the Secret Animal |
| 4,668 | 25 Largest Bodies of Water |
| 4,654 | Baltic Sea Countries with an Empty Map |
| 4,614 | Click on the Fish (Sudden Death) |
| 4,606 | Dinosaur Silhouettes - Map Quiz |
| 4,514 | Animals - Sudden Death |
| 4,413 | 100 Longest Rivers in South America - with a Map |
| 4,408 | Click to Complete the Movie Title - Animals |
| 4,400 | Animals Word Search #3 |
| 4,391 | US States along the coastline and border |
| 4,360 | 100 Longest Rivers in Africa - with a Map |
| 4,245 | Countries with a Longer Coastline than Their Neighbors |
| 4,112 | Largest River Basins by Area on a Map |
| 4,039 | 100 Longest Rivers in Asia - with a Map |
| 3,993 | Trace the coast of the world (Hard(no map)) |
| 3,969 | River Deltas on the Map |
| 3,963 | Oregon Rivers - Map Quiz |
| 3,939 | Identify the Snakes by Picture 🐍 |
| 3,875 | Herbivores - Sudden Death |
| 3,867 | German Rivers on a Map |
| 3,834 | Animals without legs - Sudden Death |
| 3,795 | Trace the Coast of Europe by Guessing the Biggest Cities |
| 3,751 | Confusing Animal Names - Picture Quiz |
| 3,711 | Major Rivers of the World - Source US Dept of Commerce, NOAA |
| 3,672 | Countries Closest to the Red Sea |
| 3,592 | Types of Sharks with Pictures (Easy) |
| 3,568 | Countries with Great Apes |
| 3,553 | Monkeys and Apes - Picture Click Quiz |
| 3,553 | They’re Rocks - Sudden Death |
| 3,544 | All Valid Dinosaur Genera |
| 3,377 | Peninsulas A-Z |
| 3,373 | English Football Clubs with Bird Nicknames |
| 3,356 | Animal Look-Alikes #1 |
| 3,350 | Largest Terrestrial Animal by Country (with Map) |
| 3,243 | Top 100 Dog Names *2011 |
| 3,209 | Parts of an Animal Cell with a Map |
| 3,204 | Famous Fictional Dogs - Sudden Death |
| 3,191 | Longest Rivers - Sudden Death |
| 3,120 | Name a Valid Country on Each River |
| 3,068 | Click the Animal Footprints |
