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

Find out the wrong term from the given series.
$56, 72, 90, 110, 132, 150$

Choose the correct alternative to complete the series: $....op....mo.....n....\,...pnmop.....$

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

In the following set of numbers,if $1$ is added to the last digit and then the order of digits is reversed,which number will be fourth if arranged in ascending order?
$567, 284, 696, 865, 738$

Study the following arrangement carefully and answer the questions given below:

$7, R,E,T ,4 ,A ,9 ,\% ,D,F, 1, U, \# ,B ,@ ,8 ,H,I ,$©$, W,M, \star, 3,2 ,V ,\$ ,5 ,N,P,6, Q$

How many such consonants are there in the above arrangement, each of which is immediately preceded by a consonant and immediately followed by a number?