Which pair of numbers is the odd one out?

C. 4, 6

Find the odd pair of numbers from the following options.

A. 5, 15

Identify the odd pair of numbers from the following options.

C. (10, 20)

Select the odd number pair from the following.

D. 20, 25

Which group of numbers is different from the others?

D. 1, 3, 5