In a coded relation, if M + N means M is the uncle of N, M - N means M is the aunt of N, and M × N means M is the cousin of N, what is the relationship of O if M + N × O?
In a coded relationship, if M ÷ N means M is the daughter of N, M + N means M is the son of N, and M × N means M is the wife of N, what is the relationship of O if M ÷ O + N?
In a coded relation, if P × Q means P is the father of Q, P + Q means P is the daughter of Q, and P - Q means P is the son of Q, what is the relationship of R if P × R + Q?