Find out the odd number from the given sequence: $32, 16, 24, 65, 210, 945, 5197.5$.

Find out the odd number from the given sequence:
$6, 91, 584, 2935, 11756, 35277, 70558$

$8, 9, 20, 63, 256, 1285, ?$

$20, 20, 19, 16, 17, 13, 14, 11, ?, ?$

If $A = \left(\frac{1}{0.4}\right) + \left(\frac{1}{0.04}\right) + \left(\frac{1}{0.004}\right) + \dots$ up to $8$ terms,then what is the value of $A$ (in $.5$)?

$0, 4, 18, 48, ?, 180$