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create a logic puzzle for children.
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logic puzzle for children

a mother has three children and each of them has a different age. the youngest is 4 years old and the oldest is twice as old as the middle child. how old is the oldest child? 

answer:
the oldest child is 8 years old. the middle child is 4 years old and the youngest is 4 years old. their ages are 4, 4, and 8.
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