| 57 | Longest Rivers on Earth |
| 57 | Name a Valid Country for Each Animal #2 |
| 56 | Largest Lakes In Finland |
| 56 | Seas - Earth or Moon? |
| 55 | Logos with Fish |
| 55 | Animal Tautonyms |
| 55 | Countries A-Z with the Lowest Peak Temperature |
| 55 | Disney’s “Zootopia” |
| 54 | States in the Ohio River Watershed |
| 54 | Plants that belong to true grass family (Poaceae) - sudden death |
| 54 | Lakes by City |
| 54 | Famous Bears |
| 53 | Animals of Russia - Sudden Death |
| 52 | Famous Animals by Picture |
| 52 | Animals in The Jungle Book |
| 52 | Plants that belong to cactus family (Cactaceae) - sudden death |
| 52 | Plants that belong to rose family (Rosaceae) - sudden death |
| 52 | Popular American apple varieties |
| 51 | Knocked Loose - Counting Worms Lyrics |
| 51 | Countries with the biggest cat populations |
| 51 | Countries Sharing Geographical Features |
| 50 | Trace the Merged Rivers on a Map |
| 49 | Countries with wild ice bears |
| 49 | Corvids – Sudden Death |
| 48 | Name a Valid State for Each Animal |
| 48 | Colorado Cities Named After Rocks |
| 48 | Countries with Brown Bears |
| 48 | Natural Features of Countries - Difficult #1 |
| 48 | Great Lakes Map Quiz - Sudden Death |
| 47 | Basic River Knowledge #2 |
| 47 | Liquid Versions of Things #1 |
| 47 | Most Identified Birds in the United Kingdom |
| 46 | Countries that border that River |
| 46 | Logos with Birds |
| 46 | Animals of Germany - Sudden Death |
| 46 | Plants that belong to nightshade family (Solanaceae) - sudden death |
| 45 | Bears by picture |
| 45 | U.S. State Capitals Closest to the Missouri River |
| 45 | Caspian Sea Cities - Sudden Death |
| 44 | Tree species in Canada by volume on a drawing |
| 44 | Largest Lakes in New Zealand |
| 44 | Trace the Russian Coasts and Borders |
| 44 | Most Guessed Seas |
| 44 | Random City to River |
| 44 | Countries with the biggest rabbit populations |
| 43 | Tree species in Great Britain by forest area on a drawing |
| 43 | Animals Hunted in the United Kingdom |
| 43 | Lakes of Ohio |
| 42 | All Antelopes |
| 42 | Are These Pictures Possible? #1 - Animal Ranges |
| 42 | Lakes by Satellite Image #2 |
| 42 | U.S. Presidents That Had Dogs Quiz |
| 42 | The Finger Lakes Quiz |
| 41 | Farm Animals in the Names of U.S. Cities |
| 41 | Flags with bears on them |
| 41 | All Dogs |
| 41 | Animals of Spain - Sudden Death |
| 41 | Click the Animal from the Description |
| 41 | Plants that belong to pine family (Pinaceae ) - sudden death |
| 41 | Countries Farthest From the Pole of Inaccessibility |
| 41 | Animals With A Specific Syllable #3 |
| 40 | Chocolatier, Canton, Watchmaker, or Lake - A Switzerland Click Quiz |
| 40 | Geology Terms A-Z |
| 40 | A-I Landforms: Multiple Choice |
| 40 | Eagle Trivia |
| 39 | Most Common Words in Bird Names (Hard) |
| 39 | Major Tectonic Plates |
| 39 | Which countries and seas, rivers and lakes border Israel |
| 39 | Films Featuring Dogs (by Picture) |
| 39 | Animals With A Specific Syllable #2 |
| 39 | Largest Lakes in Uganda |
| 39 | Famous Sailors |
| 38 | Plants that belong to daisy family (Asteraceae) - sudden death |
| 38 | Animals of Mexico - Sudden Death |
| 38 | Insect Orders with Hints |
| 38 | Most Identified Birds in the United States |
| 38 | Biggest Caspian Sea Cities Quiz |
| 38 | Bears by picture |
| 37 | US Counties with Tree Names |
| 37 | Country by Its National Animal |
| 37 | Eight types of bears |
| 37 | Countries A-Z with the Most Volcanoes |
| 36 | Dog Pictures by Breed, Type and Country |
| 35 | US states with the most Bigfoot sightings |
| 35 | Animals: Tile Select Quiz |
| 35 | Which Desert? |
| 35 | Non-Island Countries with the Highest Percent of Coastline as a Border |
| 35 | The Amazon Rainforest |
| 35 | River Delta by Country #3 - Hard Version |
| 35 | Three Longest Rivers in Mongolia |
| 34 | Countries, waters, rivers and seas bordering the North Sea |
| 33 | Biggest Lakes in Malawi |
| 33 | Easiest Quiz on Bodies of Water |
| 33 | Name a Valid Country for Each Animal #3 |
| 33 | Animals of Egypt - Sudden Death |
| 32 | Mammals of Germany |
| 32 | Animals of Iran - Sudden Death |
| 32 | Can you Name the State Bird of each US State? |
| 32 | Plants that belong to umbellifers family (Apiaceae) - sudden death |
| 32 | Animal Kingdom - Dinosaurs |
| 32 | Departments in a Rooster on the France Map |
| 32 | Longest Rivers in Alaska |
| 31 | Plants that belong to crucifers family (Brassicaceae) - sudden death |
| 31 | Plants that belong to gourd family (Cucurbitaceae) - sudden death |
| 30 | Plants that belong to beech family (Fagaceae) - sudden death |
| 30 | Plants that belong to knotweed family (Polygonaceae) - sudden death |
| 30 | Events that May Happen in the Future |
| 30 | Three Cities, One River: Click Quiz |
| 30 | Flags of the Black Sea countries - Sudden Death |
| 30 | Canada Provincial Birds - Map Click Quiz |
| 30 | Countries by Longest River |
| 30 | Countries with the Most Zoos |
| 30 | Most Common Animal by Country |
| 28 | Sea or Ocean |
| 28 | Most Identified Mammals in the United States |
| 28 | Non-Mississippi River States |
| 28 | Plants that belong to heath family (Ericaceae) - sudden death |
| 28 | Flyover Seas |
| 28 | Animal Kingdom in Numbers |
| 28 | Well known Countries, Peninsulas, Islands, and Lakes |
| 27 | Canines - Sudden Death |
| 27 | Birds A-Z #2 |
| 27 | Famous Fictional Pigs 🐷 |
| 27 | Drava River Countries |
| 26 | Plants that belong to amaryllis family (Amaryllidaceae) - sudden death |
| 26 | Lake or Sea? |
| 26 | Green Animals Picture Quiz |
| 25 | All Deer |
| 25 | Plants that belong to amaranth family (Amaranthaceae) - sudden death |
| 25 | Plants that belong to stonecrops family (Crassulaceae) - sudden death |
| 24 | Countries Without Lakes or Rivers |
| 24 | Swan Knowledge |
| 24 | Plants that belong to cashew family (Anacardiaceae) - sudden death |
| 24 | Rivers Flowing into the Sea - Sudden Death |
| 24 | Countries by Water Features |
| 23 | Countries With The Largest EEZ’s |
| 23 | Trace the Outline of Djibouti with a Map |
| 23 | Name a Valid U.S. State Bordering Lakes |
| 23 | Animals by Hint - Hard |
| 23 | Plants that belong to palm family (Arecaceae) - sudden death |
| 23 | Plants that belong to mallow family (Malvaceae) - sudden death |
| 22 | Animal Kingdom - Mammals |
| 22 | Tree species in France by volume on a drawing |
| 22 | Trace the Coast of Hispaniola |
| 22 | Lakes by Satellite Image #4 |
| 22 | Longest River in Each State |
| 21 | Countries Closest to the Caspian Sea |
| 21 | Bodies of Water with Train Ferries |
| 21 | J-Z Landforms: Multiple Choice |
| 21 | Lakes by Satellite Image #3 |
| 21 | Plants that belong to asparagus family (Asparagaceae) - sudden death |
| 21 | Capybaras A-Z |
| 20 | U.S. States by Coastline |
| 20 | Largest lakes in Denmark |
| 20 | Progressively Harder Rivers on a Map |
| 20 | Plants that belong to olive family (Oleaceae) - sudden death |
| 20 | Organelles in an Animal Cell |
| 20 | Name a Valid Country for Each Fish |
| 20 | Capital Cities on Rivers - Sudden Death |
| 20 | Plants that belong to cypress family (Cupressaceae) - sudden death |
| 20 | Plants that belong to birch family (Betulaceae) - sudden death |
| 19 | Name the Country from the Lake |
| 19 | Elements That Are Critical Minerals 🪨 |
| 19 | Capital Cities on Rivers - Choice |
| 18 | Jobs by Product #1 |
| 18 | Plants that belong to mulberry family (Moraceae) - sudden death |
| 18 | Anatomy of an Ant |
| 18 | Six Letter Animal Quiz |
| 17 | Tree species in Germany by forest area on a drawing |
| 17 | Reptiles and Amphibians of Germany |
| 17 | Name the seven seas - name the classic seas of the distant past |
| 17 | Geologic Eons |
| 17 | U.S. Forests Commonly Planted Trees (with hints!) |
| 16 | Lakes by State Quiz |
| 16 | Birds native to Great Britain #1 |
| 16 | Birds native to Great Britain #2 |
| 16 | Famous Volcanoes |
| 16 | Name a Valid Country for Each Animal #4 |
| 15 | Countries Closest to the Caspian Sea |
| 15 | Great Lakes States by Coastline |
| 15 | Largest Islands in the Great Lakes Quiz |
| 15 | 20 longest nordic rivers |
| 14 | U.S. Homeowners' Favorite Trees & Shrubs (with pictures!) |
| 14 | Biggest Lakes by Country |
| 14 | 20 largest nordic lakes |
| 13 | 20 largest nordic rivers |
| 13 | Biggest Lakes in Kazakhstan |
| 13 | States with only one volcano on a map |
| 13 | Owl Trivia |
| 12 | Longest Tributaries |
| 12 | Oceanic Zones |
| 12 | Guess the Volcano Eruption |
| 12 | States with only one volcano |
| 12 | Liquid Versions of Things #2 |
| 11 | All Civets |
| 11 | Lake To US State |
| 11 | Tree species in Austria by forest area on a drawing |
| 11 | Anatomy of a Volcano |
