The following question is based on the five three-digit numbers given:
$513, 248, 371, 634, 167$
Which of the following represents the sum of all three digits of the lowest number among them?

Choose the correct alternative for the missing term:
$J2Z, K4X, I7V, ?, H16R, M22P$

Find the wrong number in the series.
$10, 26, 74, 218, 654, 1946, 5834$

These questions are based on the following arrangement. Study it carefully and answer the questions.

$8 ,H ,\% ,3,7 ,T,A ,4 ,\# ,6 ,B,I ,@ ,R ,1 ,Q ,\star, L,E ,2 ,K ,\$ ,U ,5,9$

How many such symbols are in the above arrangement each of which is immediately followed by a number but not immediately preceded by another number?

Second and third digits of each number given below are interchanged. Then,the $1st$ and the last digits of each new number thus formed are interchanged. Which of the following numbers then will be the highest number among the five?
$273, 372, 438, 184, 526$

Fill in the blank space for the given series with the correct alternative.
$1, 2, 6, 24, (...)$