The Riddles

Sustainability Challenges

Explore our collection of sustainability-themed riddles and challenges that test your knowledge and problem-solving skills.

Medium

Glass Cabin Riddle

Solve the mystery of sustainable materials in the glass cabin.

Hard

Sustainable Materials

Identify and match sustainable materials for interior design.

Easy

Recycling Challenge

Sort and process materials in this recycling challenge.

Medium

Upcycling Innovation

Transform waste materials into valuable new products.