Here is a list of the puzzles:
| Challenge | Description | |
| Microwave Makeover | Improve the usability of a set of analogue microwave controls | Puzzle Response |
| Digital Microwave Interfaces | Use the richness of digital interfaces to design more usable microwave experiences | Puzzle Response |
| Conversational Microwave Interface | Design a conversational interface for a smart microwave, voice input and audio output | Puzzle Response |
| Home security-system SNAFU | There are unexpected interactions between elements of your home security system, with bad consequences. Would your UX testing catch them? | Puzzle Response |