Humans have two that shrink in the light and expand in the dark.
I'm white, perfect for cutting and grinding. For most animals I am a useful tool. What am I?See answer
This only turns over once you have travelled very far. What is it?See answer
Could be described as the cranium's version of snow.See answer
Select a pack of riddles and try to solve it in an interesting way.
This riddle appears in the following downloadable PDF files: