Find the odd number out

Find the odd one out from the given:

Find the odd pair among the following options.

Select that number which is different from the others.

Find the odd one in the following groups : Q,W,Z,B B,H,K,M W,C,G,J M,S,V,X

In the series of numbers and alphabets A26H, C24F, G20B, the next term is