On which day of the week did Kush visit the museum ?
Statement I. Kush did not visit museum either on Tuesday or on Thursday.
Statement II. Kush visited the museum two days before his mother reached his house which was the day after Monday.
If the data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question
We do not have enough information from Statement I. According to II, Kush's mother reached his house the day after Monday i.e. on Tuesday. Thus, Kush visited museum two days before Tuesday i.e. on Sunday.