| 2,296 | 8000m Peaks Quiz | 2025-06-13 | 9 |
| 380 | Coats of Arms: Europe | 2026-03-19 | 1 |
| 346 | Geography: North America #1 | 2026-04-15 | 3 |
| 336 | Periodic Table: Elements 31-60 Symbol Quiz | 2025-08-18 | 0 |
| 286 | U.S. State Flags | 2026-01-29 | 1 |
| 214 | Periodic Table: Elements 1-30 Symbol Quiz | 2025-08-18 | 0 |
| 207 | Flags of Africa: Randomized | 2025-11-14 | 0 |
| 196 | Non-Recognized Countries and Territories of the World | 2026-01-26 | 2 |
| 186 | The Periodic Table of Elements Symbols Quiz | 2025-09-05 | 0 |
| 159 | Periodic Table: Elements 61-90 Symbol Quiz | 2025-08-18 | 0 |
| 154 | Flags of Europe: Randomized | 2025-08-06 | 0 |
| 134 | Flags of Asia: Randomized | 2025-10-29 | 0 |
| 115 | Flags of Oceania: Randomized | 2025-08-06 | 0 |
| 104 | Periodic Table: Elements 91-118 Symbol Quiz | 2025-08-25 | 0 |
| 101 | U.S. State Nicknames - Click Quiz (State to Nickname) | 2026-01-29 | 0 |
| 94 | Flags of North America: Randomized | 2025-08-06 | 0 |
| 76 | Chemical Elements | 2025-10-30 | 0 |
| 67 | Coats of Arms: Asia | 2025-11-14 | 0 |
| 66 | Flags of South America: Randomized | 2025-11-18 | 0 |
| 63 | Flags with Stars | 2026-03-19 | 0 |
| 62 | Coats of Arms: North America | 2026-04-22 | 0 |
| 61 | Periodic Table: In Order! | 2025-10-06 | 0 |
| 58 | Coats of Arms: South America | 2025-11-14 | 0 |
| 58 | Coats of Arms: Oceania | 2025-11-14 | 0 |
| 55 | Capitals by Flag: Africa | 2025-11-04 | 0 |
| 53 | Random Country Shapes: Oceania | 2025-06-13 | 0 |
| 53 | Country Names in Their Native Language | 2026-02-17 | 0 |
| 52 | Coats of Arms: Africa | 2025-12-15 | 0 |
| 48 | U.S. State Seals Quiz | 2026-01-29 | 0 |
| 47 | Capitals by Flags: Asia | 2025-11-04 | 0 |
| 46 | Chemical Symbols Quiz | 2025-10-30 | 0 |
| 41 | U.S. State Nicknames - Click Quiz (Nickname to State) | 2026-01-29 | 0 |
| 40 | States of Mexico: Fill-In Map | 2026-03-30 | 0 |
| 39 | Geography: United States #3 | 2026-04-10 | 0 |
| 39 | Geography: United States #1 | 2026-04-15 | 0 |
| 36 | Flags with ONLY 3 Stripes | 2025-08-14 | 0 |
| 35 | Non-Recognized Countries and Territories of the World - HARD | 2026-01-23 | 0 |
| 35 | Portmanteaus #4 | 2026-01-30 | 0 |
| 34 | Random Country Shapes: North America | 2025-06-17 | 0 |
| 34 | Random Country Shapes: Asia | 2025-06-17 | 0 |
| 34 | Random Country Shapes: Europe | 2025-06-24 | 0 |
| 34 | Random Country Shapes: Africa | 2025-11-14 | 0 |
| 33 | Similar Flags: Multiple Choice | 2025-10-23 | 0 |
| 32 | Geography: United States #2 | 2026-04-10 | 0 |
| 31 | Geography: United States #4 | 2026-04-10 | 0 |
| 31 | Capital to Country | 2025-09-24 | 0 |
| 30 | States of Germany - with Map | 2026-03-31 | 0 |
| 30 | Orange, White, and Green Flags | 2025-10-23 | 0 |
| 29 | States of Mexico - Map Click Quiz | 2026-03-26 | 0 |
| 28 | Chemical Symbol to Name | 2026-01-26 | 0 |
| 28 | Flags: Click Quiz | 2025-10-29 | 0 |
| 28 | Portmanteaus | 2026-01-30 | 0 |
| 28 | Random Country Shapes: South America | 2025-06-17 | 0 |
| 27 | Nebula Picture Quiz | 2026-01-07 | 0 |
| 27 | Similar Flags Quiz | 2025-11-18 | 0 |
| 27 | Red, Green, and Yellow Flags: Click Quiz | 2025-10-28 | 0 |
| 27 | Geographical Regions of the United States - Click Quiz | 2026-01-29 | 0 |
| 26 | Red, White, and Blue Flags | 2025-10-23 | 0 |
| 25 | U.S. State by Facts | 2026-01-30 | 1 |
| 24 | Blue and White Flags | 2025-10-23 | 0 |
| 24 | Yellow, Red, and Blue Flags | 2025-10-23 | 0 |
| 23 | Red and White Flags | 2025-10-30 | 0 |
| 22 | States of Germany: Fill-In Map | 2026-03-30 | 0 |
| 22 | Portmanteaus #3 | 2026-01-30 | 0 |
| 22 | Shapes of Mexican States | 2026-04-02 | 0 |
| 21 | States of Germany - Map Click Quiz | 2026-03-30 | 0 |
| 21 | Country Flags of the World RANDOM | 2026-04-07 | 0 |
| 21 | Flags with the Union Jack | 2025-08-06 | 0 |
| 20 | Flags with Diagonal Stripes | 2025-08-07 | 0 |
| 20 | Shapes of German States | 2026-03-30 | 0 |
| 20 | U.S. National Monuments | 2025-12-16 | 0 |
| 20 | Country, Capital, and Shape: Europe | 2025-07-07 | 0 |
| 20 | Red, White, and Green Flags | 2026-04-10 | 0 |
| 20 | Yellow, Red, and Green Flags | 2025-10-23 | 0 |
| 20 | Portmanteaus #2 | 2026-01-30 | 0 |
| 20 | U.S. State Name Origins/Etymologies | 2026-02-12 | 0 |
| 19 | States of Mexico - Map Quiz | 2026-03-25 | 0 |
| 19 | Island Country Shapes: Randomized | 2026-01-02 | 0 |
| 18 | Flag Emblems/Coats of Arms | 2025-11-18 | 0 |
| 17 | States of Germany - Map Quiz | 2026-03-31 | 0 |
| 17 | Capitals by Flag: North America | 2025-11-04 | 0 |
| 17 | States with National Parks | 2025-12-16 | 0 |
| 16 | Capitals by Flag: Europe | 2025-11-04 | 0 |
| 16 | Official Languages | 2026-02-26 | 0 |
| 16 | Capitals of Africa: Randomized | 2025-08-07 | 0 |
| 15 | States of Mexico - with Map | 2026-03-30 | 0 |
| 15 | Capitals by Flag: Oceania | 2025-11-04 | 0 |
| 15 | Capitals by Flag: South America | 2025-11-18 | 0 |
| 15 | U.S. State Flag and State Nickname Quiz | 2026-01-29 | 0 |
| 15 | Country, Capital, and Flag: Europe | 2025-08-06 | 0 |
| 14 | Flags with More than 3 Horizontal Stripes | 2025-10-29 | 0 |
| 14 | West Indies Islands | 2026-01-23 | 0 |
| 14 | Flags with Stripes | 2026-01-29 | 0 |
| 14 | 3-Stripe Flags | 2026-01-29 | 0 |
| 13 | Black, Green, and Red Flags | 2025-10-29 | 0 |
| 13 | Coats of Arms of the World | 2026-04-22 | 0 |
| 13 | U.S. State by Nickname Description | 2026-02-13 | 0 |
| 12 | States of Mexico | 2026-03-30 | 0 |
| 12 | Caribbean Dependencies | 2026-01-23 | 0 |
| 11 | Islands of the Caribbean - Shape Quiz | 2026-01-23 | 1 |
| 11 | Coats of Arms with Birds | 2025-11-26 | 0 |
| 11 | Country Shape and Capital: Africa | 2025-08-07 | 0 |
| 10 | Official Country Names | 2026-02-26 | 0 |
| 9 | States of Germany | 2026-03-30 | 0 |
| 9 | Nonmetals - Periodic Table Map | 2026-02-11 | 0 |
| 9 | Full/Official Country Endonym | 2026-02-26 | 0 |
| 7 | National Parks by State | 2025-12-16 | 0 |
| 7 | Every Country Shape RANDOM | 2026-03-18 | 0 |
| 7 | Country to Capital | 2025-10-30 | 0 |
| 6 | Caribbean Netherlands | 2026-01-23 | 0 |
| 6 | Coats of Arms with 2 Birds | 2025-11-26 | 0 |
| 1 | Countries of the World Quiz | 2025-06-11 | – |
