Which of the following words CANNOT be formed from the letters of the word 'INFRASTRUCTURE' ?

If '-' stands for 'division', '+' for 'multiplication', '÷' for 'subtraction' and 'x' for 'addition', then which one of the following equations is correct?

BJMS : EMPV :: AWPL : ?

In a certain code, 3456 is written as ROPE and 15526 is written as APPLE. How is 54613 written in the same code?

In a certain coding language, HE is coded as 418 and GO is coded as 240. How will SHE be coded in that language?

If '+' means '÷', '−' means '×', '÷' means '+' and '×' means '−', then $36 × 12 + 4 ÷ 6 + 2 − 3$ is equal to

In a certain code language, if GREEN is coded as 1677209 , then how would BLUE be coded in that language ?