Find out the missing term for the given series from the given alternatives:
$OTE, PUF, QVG, RWH, ?$

Fill in the blank space for the given series with the correct alternative.
$2, 3, 5, 7, 11, (\dots), 17$

To answer these questions study carefully the following arrangement of letters, digits and symbols.

$6,=, \#, C,E, 3,8 ,G,L,M, 7, \star, @ ,P,R, 4, \$,N,T, 5, S,V$

If all the digits in the arrangement are removed, then which of the following will be the $8^{th}$ to the right of the $15^{th}$ element from the right end?

Choose the correct alternative to fill in the blanks in the series: $...,...aba..., ...ba ...ab$

Choose the correct alternative for the missing term.
$JE, LH, OL, SQ, ?$

How many such digits are there in the number $52361984$ each of which is as far away from the beginning of the number as when the digits are rearranged in ascending order within the number?