Fill in the blank space for the given series with the correct alternative.
$10, 5, 13, 10, 16, 20, 19, (\ldots)$

Find out the wrong term from the given series:
$3, 10, 27, 4, 16, 64, 5, 25, 125$

The positions of how many digits in the number $7,3,5,4,6,1,2$ will remain unchanged after the digits within the number are rearranged in descending order from left to right?

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?

Study the following arrangement carefully and answer the question given below:
$B, 2, I, J, K, 4, 3, H, 5, E, R, P, 6, N, A, 9, W, 8, T, U, 1, V, D, 7, F$
How many such consonants are there in the given arrangement,each of which is immediately followed by a number but not immediately preceded by a vowel?

Find the missing terms for the given series from the given alternatives:
$A, Z, X, B, V, T, C, R, (?), (?)$