The best selection of riddles and answers, for all ages and categories
What gets sharper the more you use it?
I turn around once. What is out will not get in. I turn around again. What is in will not get out. What am I?
I'm white, and used for cutting and grinding. When I'm damaged, humans usually remove me or fill me. For most animals I am a useful tool. What am I?
I have keys but no doors, I have space but no rooms, I allow you to enter but you are never able to leave. What am I?
What can be measured but has no length, width or height?
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