I much enjoyed this one: > Sally (a girl) has 3 brothers. Each brother has 2 sisters. How many sisters does Sally have? https://benchmarks.llmonitor.com/sally

I much enjoyed this one: > Sally (a girl) has 3 brothers. Each brother has 2 sisters. How many sisters does Sally have? https://benchmarks.llmonitor.com/sally https://benchmarks.llmonitor.com/sally It states that the correct answer is 1. This is incorrect! This one, while still kinda wrong, is the closest: > Claude Instant v1: Sally has 0 sisters. The question provides no information about Sally having any sisters herself. 1) A sister is a female who has one or both parents in common with another individual. 2) A brother is a male who has one or both parents in common with another individual. It takes only one shared parent to make someone Sally's brother. She will always be his sister but he can have additional sisters that share the other parent. Sally's mum is Jane and her dad is Jim. Jane had a son with Jack. Jack had 2 daughters with Zoe. Jim had 2 sons with Mary, Mary had 2 daughters with Dan. Zoe Jack Jane Jim Mary Dan \ / \ / \ / \ / \ / sis1.1&1.2 brother1 Sally brother2&3 sis2.1&2.2 Sally has at least zero sisters. Also possible: Sally's mum is Jane and her dad is Jim. Jane has a son and a daughter with Jack. Jim has 2 sons and a daughter with Mary. Jack Jane Jim Mary \ / \ / \ / sis1&brother1 Sally brother2&3&sis2 Sally has at most 2 sisters. We should be this dense about the question.