For the regression line of y on x, 2x+7y+32=0, find the

In a certain code language, 'DOSIER' is written as 'DEIORS' and 'LOGIC' is written as 'CGILO'. How will 'CORTEX' be written in that language?

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(11, 8, 352)

(15, 6, 360)

Which of the following terms will replace the question mark (?) in the given series?

GASM, CCOO, YEKQ, ? , QICU 

Select the wrong term in the given alpha-numeric series.

H25U, I30T, J35S, K40R, L45P 

Read the given statement and conclusions carefully. Decide which of the given conclusions is/are definitely true from the statement.

If each of the letters of the word 'STADIUM' are re-arranged in the English alphabetical order, then the position of which letter will remain unchanged?