In a code, the $$n^{th}$$ letter of an English alphabet is coded to $$f(n)^{th}$$ letter, where $$f(n)$$ is defined by
$$\begin{cases}n + 17, & if & 1 \leq n \leq 9\\n - 1, & if & 10\leq n \leq 18 \\n -18, & if & 19 \leq n \leq 26\end{cases}$$
For decoding, the reverse process is used. Based on this coding and decoding process, answer the questions:
For the following questions answer them individually
B is the brother of A,S is the sister of B, E is the brother of D, D is the daughter of A and F is the father of S. Then the uncle of E is
A person X is facing North. He turns $$165^\circ$$ in the anti-clockwise direction, then $$30^\circ$$ in the ‘clock-wise direction and thereafter $$90^\circ$$ in the anti-clockwise direction. Then X is facing
The ages of a son andhis father wasin the ratio 2: 5 seventeen years ago. If the present age of the son is 35 years, the age of the father 5 years hence, is