TS ICET 23 May 2019 Shift 2 Paper

In a certain code, the rth letter of the English alphabet is coded as r + 10(= mod 26)th letter cyclically. For example, 4th letter D is coded as 14th letter N and 24th letter X is coded as 8th letter H (because r +10 (= mod 26)). The reverse process is used for decoding. Basing on this coding and decoding, answer questions