Find which one of the given words can be made from the

If 66 @ 26 = 15' and 44 @ 6 = 12', then 56 @ 12 = ?'. What will come in place of question mark? 

Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.

CANVAS : DCQZFY : : LOANER : ?

How is J related to H?

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

HAMMERS: AHMMRES :: JOURNEY : ?

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

If 18 & 6 # 32 = 76 and 60 # 6 & 5 = 10, then 15 & 5 # 42=?

Chug : Train : : Bang : ?

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