Coding and Decoding Questions

If 10$25 = 8, 12$25 = 10 then what is the value of 14$53 = ?

In a certain code language, "DELETE" is written as "#@^@%@" and "GRAM" is written as "!?*&". How is"TELEGRAM" written in that code language?

If 9#3 = 120, 3#4 = 70 and 2#9 = 110, then find the value of 5#2 = ?

If 56 x 11 = 9, 37 x 13 = 6, 42 x 12 = 3, then find the value of 87 x 77.

If STUDENT is coded as 103, what is the code for SCHOOL?

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.
Statement:
Y > A < N, Y = B <P
Conclusion:
I. P > A
II. N > B

If ENTRY is coded as 98462 and STEADY is coded as 749312, then how is NEATNESS written in that code?

In a certain code GIVE is written as VIEG and OVER is written as EVRO. How will DISK be written in that code?