Difficult Riddles For Smart Kids: Science and Technology Edition: 350 Fun Brain-Stumpers For Kids and Families: Ages 8 and up (7-9, 9-13+) (Eleven Worlds to Explore)
| Country | USA |
| Manufacturer | Henry Holt and Co. |
| Binding | Kindle Edition |
| ReleaseDate | 2020-03-10 |
| Format | Kindle eBook |