Coding and Decoding Questions

If "A" denotes "multiplied by", "B" denotes "subtracted from", "C" denotes "added to" and "D" denotes "divided by", then

7 B 17 C 88 D 11 A 6 = ?

If 6 @ 4 @ 7 = 101 and 2 @ 5 @ 11 = 150, then what is the value of A in A @ 8 @ 9 = 289?

If SPOON means PLATE, PLATE means BOWL, BOWL means GLASS and GLASS means SPOON, then what is used to drink water?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it? _AB_PQ_AB_P_

If 5$125 = 25, 12$48 = 4 then what is the value of 4$24 = ?

In a certain code language, "TOAST" is written as "56345" and "TRAIN" is written as "59310". How is"TORN" written in that code language?

If THOUGHT is coded as THGUOHT then THROAT will be coded as

In a certain code language, "PEN-TAN" is written as "0". How is "DEN-COB" written in that code language?