Answer: A month's 1 is Tuesday, so the 29th is Tuesday. If 1 is a Tuesday in a month, it will be a Tuesday with seven more days, the 8th will be a Tuesday with seven more days, and 15 will be a Tuesday with seven more days. The 22nd will still be Tuesday, and the 22nd will be a Tuesday of more than seven days.

There are 7 days in a week, which means that 3 1 day is 4 weeks and 3 days. Then the question comes: what day is it in four weeks and three days? Look around first, or Monday. Then, I will know what day it will be in three days.

Let's use the numbers 1-7 to represent Monday to Sunday respectively, and we can quickly work out the questions you want to ask.