What is the average number of matte lipsticks sold by

Select the option in which the numbers are related in the same way as are the numbers in the given set.

(19, 165, 14)

If HOT = 81520 and HEAT = 85120, then HEATER =

Select the related number from the given alternatives:

9 : ? :: 8 : 513 

If 47 # 56 = 159 and 28 # 38 = 104, then 35 # 49 = ?

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

If TOP = 201516 and TOPS = 20151619, then TOPPER =

Air : Atmosphere :: Water : ?

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