Find the next term in the series: $1, 5, 13, 25, 41, ?$

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.

$85$	$43$	$44$	$67.5$	$137$	$345$
$125$	$(a)$	$(b)$	$(c)$	$(d)$	$(e)$

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

Find the missing term $x$ in the series: $2, 6, 30, 210, x, 30030, .....$

Find the wrong number in the given sequence:
$4, 2.5, 3.5, 6.5, 15.5, 41.25, 126.75$ (in $.5$)

$80$	$50$	$130$	$100$	$180$	$150$	$230$
$900$	$(A)$	$(B)$	$(C)$	$(D)$	$(E)$

Which of the following numbers will come in place of $(E)?$

What will come in place of the question mark $(?)$ in the following number series?
$2, 3, 5, 8, 12, ?$