$12, 8, 14, 6, 16, ?$

Find the odd man out:
$1, 3, 10, 21, 64, 129, 356, 777$

In the following number series,only one number is wrong. Find out the wrong number.
$2, 54, 300, 1220, 3674, 7350$

What will come in place of the question mark $(?)$ in the following number series?
$3, 6, 11, 18, 27, ?$

Find the next number in the series: $6, 9, 15, 27, 51, ?$

In each of the following questions,a number series is given. After the series,a number is given followed by $(a), (b), (c), (d),$ and $(e).$ You have to complete the series starting with the number given,following the sequence of the original series and answer the questions that follow the series.

$7$	$91$	$1001$	$7007$	$35035$	$105105$
$14.5$	$(a)$	$(b)$	$(c)$	$(d)$	$(e)$

What will come in place of $(c)$ (in $.5$)?