Verbal Reasoning - Mental Ability Questions

If FRIEND is coded as HTKGPF then REVEAL will be coded as:

In the following question, select the missing number from the given series.
9, 18, 72, 576, ?

If 4 * 7 * 2 = 361 and 5 * 9 * 1 = 480, then 2 * 1 * 3 = ?

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

In a certain code language, "SINGING" is written as "TJOHJOH". How is "DANCING" written in that code language?

Primary care physicians are responsible for diagnosis and treatment.

In a row of boys, Punit’s position from the left end is 33rd and Ankit’s position from the right end is 25th. After interchanging their position, Punit’s position becomes 45th from the left end. How many boys are there in the row?

If FRISKED is coded as HTKUMGF, then how will SUN be coded as?