In the Following questions pick the odd thing out.
The following questions follow a definite pattern. Oberve the same and fill in the blanks with suitable answers.
8, 12, 20, 28, 44, 52, ______
26, 50, 122, 170, ______
13, 34, 74, 170, 290, ______
12C, 23E, 34G, 45I, 56K, _____
$$\frac{5}{3}, \frac{13}{5}, \frac{25}{7}, \frac{41}{9}$$, _________