pick the odd thing out:
The question follows a definite pattern. observe the same and fill in the blanks with suitable answers.
2, 3, 5, 9, 17, 33, -------
9, 101, 999, 10001, ----------, 1000001, 9999999
(26, 28, 27), (22, 24, 23), (18, 20, 19), (14, 16, 15), ---------
7, 13, 21, 31, 43, 57, --------
24.5, 18.0, 12.5, 8.0, --------, 2.0