Coding and Decoding Questions

In a certain code language, "CERTAIN" is written as "DFSTBJO". How is "CRICKET" written in that code language?

If "A" denotes "added to", "B" denotes "divided by", "C" denotes "multiplied by" and "D" denotes "subtracted from", then 116 B 29 C 6 A 24 D 45 = ?

If DECEMBER is coded as EDECBMRE then FEBRUARY will be coded as

If 92 A 42 B 32 = 56 and 72 A 22 B 12 = 44, then 112 A 52 B 72 = ?

If FLOTSAM is coded as UOLGHZN, then how will PIN be coded as?

In a certain code language, "TREASON" is written as "RKWWINX" and "POULTRY" is written as "CNXHYKT". How is "NUMBER" written in that code language?

If "#" means "subtraction", "&" means "division", "@" means "addition" and "%" means "multiplication", then 217 & 7 # 3 @ 2 % 7 = ?

If BLACKSMITH is coded as CNBELUNKUJ, then CHILDREN will be coded as ?