Coding and Decoding Questions

In a certain code language, "TERMITE" is written as "UDSLJSF". How is "MINISTER" written in that code language?

If 1∆-5=5, 4∆7=-28 and -1∆-3=-3, then find the value of 8∆-8 =?

In a certain code language, "OPTIMIST" is written as "LKRNRGHG". How is "PESSIMIST" written in that code language?

If 35 % 31 = 12, 92 % 30 = 14 then what is the value of 15 % 24 = ?

In a certain code language, "REMINDER" is written as "SFNJMCDQ". How is "STANDARD" written in that code language?

If RESEARCH is $#!#%$&@ then SCARE is

If QUICKLY is coded as OSGAIJW, then how will HUE be coded as?

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then
76 x 4 + 4 – 12 ÷ 37 = ?