Coding and Decoding Questions

If RATION is written as OXQFLK then LUMBER may be written as _____ .

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

In a certain code language, "OCEAN" is written as "PEHES". How is "RIVER" written in that code language?

If A = 1, AND = 19, then ANT = ?

In a certain code language, “TRAP” is written as “53” and “MADE” is written as “21”. How is “LATE” written in that code language?

If 4 x 5 x 2 = 524, 3 x 7 x 2 = 723 and 6 x 8 x 7 = 876 then 9 x 4 x 5 = ?

If A = 26 and X-RAY = 40, then WHAT = ?

If 37*14 = 17,
69*33 = 34,
91*125 = 72
then what should 28*56 = ?