"I have as many brothers as sisters, but my brothers have twice the number of sisters as brothers. How many children do my parents have?" 答案是:七个(seven) 这会有10,000的经验。 接下来你就会玩硬币游戏。以下是赢得方法: 你拿: 2个硬币(他会拿一个) 3个硬币(他拿三个) 1个硬币(留给他...