| Countries of the World Quiz | 47,433,159 | 0 | - |
| US States Quiz | 16,868,025 | 0 | - |
| Counties of England | 796,450 | 0 | - |
| Counties of England Map Quiz | 307,575 | 0 | - |
| Official Cities in the UK | 283,617 | 0 | - |
| UK Cities to Map | 846 | - | - |
| All Country Flags of the World | 3,661,473 | 0 | - |
| Europe Map Quiz | 4,761,876 | 0 | - |
| Asia Map Quiz | 916,439 | 0 | - |
| Africa Map Quiz | 2,117,440 | 0 | - |
| North America Map Quiz | 248,381 | 0 | - |
| Oceania Map Quiz | 642,026 | 0 | - |
| Seas on the World Map | 135,311 | 0 | - |
| Largest World's Islands on the World Map | 175,474 | 0 | - |
| Gulfs and Bays on the World Map | 30,237 | 0 | - |
| Straits on the World Map | 7,183 | - | - |
| World's Longest Rivers on a Map | 87,763 | 0 | - |
| World Capitals Quiz | 5,071,657 | 0 | - |
| Random Capital to Country | 2,590,620 | 0 | - |
| Random Country to Capital | 920,124 | 0 | - |
| US States and State Capitals | 162,168 | 0 | - |
| Random State Capital to U.S. State | 88,994 | 0 | - |
| Random U.S. State to State Capital | 5,260 | - | - |
| Mountain Ranges on the Map | 61,927 | 0 | - |
| English Monarchs in Order by First Letter | 31,762 | 0 | - |
| Prime Ministers of the UK | 438,789 | 0 | - |
| U.S. Presidents Quiz | 3,696,772 | 0 | - |
| Empires by Maps | 120,383 | 0 | - |
| Largest Objects in the Solar System | 137,207 | 0 | - |
| Major Taxonomic Ranks | 80,540 | 0 | - |
| International Scientific Units | 156,804 | 0 | - |
| Elements of the Periodic Table | 2,241,934 | 0 | - |
| Stages of stars | 3 | - | - |
| Moon Phases | 108 | - | - |
| Oscar Best Pictures | 310,508 | 0 | - |
| Oscar Best Actors | 252,367 | 0 | - |
| Oscar Best Actresses | 185,939 | 0 | - |
| Nobel Peace Prize Winners | 11,491 | 0 | - |
| FIFA World Cup Winners | 258,752 | 0 | - |
| U.S. Presidential Terms with Whammies | 20,102 | 0 | - |
| Basic Orchestral Instruments | 166,089 | 0 | - |
| Citrus Fruits | 42,071 | 0 | - |
| Plants that belong to legume family (Fabaceae) - sudden death | 72 | - | - |
| Biggest Cities in the World | 798,395 | 0 | - |
| Shakespeare's Plays Quiz | 387,960 | 0 | - |
| Biggest Countries by Population | 1,445,216 | 0 | - |
| Peninsulas on the Map | 58,973 | 0 | - |
| Signs of the Zodiac Quiz | 225,699 | 0 | - |
| Random Acronyms #2 | 93,812 | 0 | - |
| Random Acronyms Quiz #1 | 59,388 | 0 | - |
| Canada Provinces Map Quiz | 640,162 | 0 | - |
| Australia Map Quiz | 344,546 | 0 | - |
| Letters of the Greek Alphabet | 647,208 | 0 | - |
