Coding and Decoding Questions

If '+' means '÷', '÷' means '­', '­' means 'X' and 'X' means '+', then 48 + 16 x 4 ­2 ÷ 8 = ?

If 75$26 = 4, 69$53 = 7 then what is the value of 82$46 = ?

If SELFIE = LXEYBX, then PHYSICS = ____

In a certain code language, "SCENE" is written as "TBFMF". How is "TRAIN" written in that code language?

In a certain code language, "SIGHT" is written as "@?*^!" and "ANT" is written as "#&!". How is "NIGHT" written in that code language?

In a certain code language, "NATURE" is written as "TANURE". How is "LISTEN" written in that code language?

If ‘A’ means ‘+’, ‘B’ means ‘–’, ‘C’ means ‘×’ and ‘D’ means ‘÷’, then which of the following equation is true?

If 5 x 4 x 0 = 405
3 x 2 x 8 = 283
then 1 x 7 x 6 = ?