CMOS stands

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

If 35 @ 18 = 66 and 49 @ 22 = 136, then 23 @ 44 = '?'.

Select the word which does not belong to the same group from the given alternatives.

63 :  45 : : 85 : ?

Select the option that is related to third letter cluster in the same way second letter cluster is related to first letter cluster.

Window : Curtain ::?:?

Select the option that is related to the third term in the same way as the second term is related to first term.

PARKER: QZSLDS :: CAREER : ?

Select the related number from the given alternatives:

19 : ? :: 18 : 5833