Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 - Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

(12-14-18)

Except option 4

Same logic is followed that add 4 in previous number

(16-20-24) = 16   ,  16 + 4  , 20 + 4

(23-27-31) = 23  ,  23 + 4 ,   27 + 4

(11-15-19) = 11  ,   11 +4 ,  15 + 4

(12-14-18) = 12 , 12 +2  , 14 + 4 which is odd