Riddle: There is a certain family with both girl and boy children. Each of the boys has the same number of brothers as he has sisters. Each of the girls has twice as many brothers as she has sisters. How many boys and girls are there in this family?
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Rating: 100%
Rating: 67%
Riddle: A circle of stones, never in rows. Stacked one on the other, mystery it sows. What is it?
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Rating: 100%