Logical Deduction Questions

Pointing towards Aneesh, a woman said, "His mother is the only daughter of my mother." How is the woman related to Aneesh?

Pointing towards Aneesh, a woman said, "His mother is the only daughter of my mother." How is the woman related to Aneesh?

What is the missing number in the following sequence?
$$3,18,90,360,1080,2160,\underline{},0$$

Find the incorrect number in the following series:
$$1,12,144,1782,20736$$

Introducing a boy, a girl said, "He is the son of the daughter of the father of my uncle." How is the girl related to the boy?

A manager has a team of four people: Adam, Brian, Carol and Diana. Each one has a different project deadline: 3 days, 4 days, 5 days and 6 days, but not necessarily in that order. Adam's deadline is earlier than Carol's. Brian's deadline is not the longest. Diana's deadline is the shortest. What is Brian's deadline?