Coding and Decoding Questions

In a certain code, "go home" is written as "ta na" and "nice little home" is written as "na ja pa". How is "go" written in that code?

In a certain code language, 'NIGERIA' is written as '@#^$?#*'. How is 'GINGER' written in that code language?

If 18 x 12 = 206 and 19 x 22 = 408, then 23 x 36 = ?

In a certain code language, "INSTANT" is written as "IOUWESZ". How is "FORGET" written in that code language?

In a code language, if LUCK is written as L2U1C3K1, then what is the last digit for the code for XEROX in that same language?

In a certain code language, "VERBAL" is written as "KZAQDU". How is "CURIOUS" written in that code language?

If A denotes '+', B denotes '­', C denotes 'x' and D denotes '÷', then which of the following statement is true?

If P denotes ÷ , Q denotes x, R denotes + and S denotes ­ then what is the value of 18Q12P4R5S6