$8, 47, 234, 935, ?, 5607$

$2, 1, 2, 4, 4, 5, 6, 7, 8, 8, 10, 11, ?$

$4$	$14$	$42$	$147$	$558$	$2058$	$10290$
$8$	$(A)$	$(B)$	$(C)$	$(D)$	$(E)$

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

What is the value of $S = \frac{1}{1 \times 3 \times 5} + \frac{1}{1 \times 4} + \frac{1}{3 \times 5 \times 7} + \frac{1}{4 \times 7} + \frac{1}{5 \times 7 \times 9} + \frac{1}{7 \times 10} + \dots$ up to $20$ terms?

Find the next number in the series: $6, 11, 21, 36, 56, ?$

$4$	$7$	$24$	$93$
$2$	$(a)$	$(b)$	$(c)$	$(d)$	$(e)$

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