List of top Logical Reasoning Questions on Series asked in MAT

What should come in place of question mark (?) in the following number/alphabetic series?
X U S P N K ?
Various terms of a series are given with one term missing as shown by (?). Choose the missing term. \[ \text{QPO, SRQ, UTS, WVU, (?)} \]
Various terms of a series are given with one term missing as shown by (?). Choose the missing term.\[ 225, 7Y7, 14X9, 23W11, 34V13, (?) \]
If the numbers from 1 to 45 which are exactly divisible by 3 are arranged in ascending order, with the minimum number at the top, then which number would come at the ninth place from the top?
Various terms of a series are given with one term missing as shown by (?). Choose the missing term.\[ YES, WFD, UHG, SKI, (?) \]
Various terms of a series are given with one term missing as shown by (?). Choose the missing term.\[ AZ, CX, FU, (?) \]
Various terms of a series are given with one term missing as shown by (?). Choose the missing term.\[ 19, 2, 38, 3, 114, 4, (?) \]
A, G, L, P, S, '?'
D-4, F-6, H-8, J-10, '?'
3F, 6G, 11I, 18L, '?'
AI, BJ, CK, '?'
Complete the following number series 4, 4, 8, 24, 96, 480,?, 20160
Find the missing term 60, 40, 55, 45,50,?

Each of the following questions is based on the following series.

ABCD5FGH9JKLMN15PQR16TU22WXZ
Complete this question by replacing the '?' mark
ABCD, BCDA, CDAB, ?, ABCD
Complete this question by replacing the '?' mark
AMV, BNW, COX, ?, EQZ
Complete this question by replacing the '?' mark
BCD, BDC, CBD, ?, DCB
Complete this question by replacing the '?' mark
XYZ, XZY, YZX, ?, ZXY
Complete this question by replacing the '?' mark
OAC, PBD, QCE, RDF, ?
Complete the series by replacing the '?'
B0R, E3U, G9Y, J18D, ?
Complete the series by replacing the '?'
A729, G343, ?, S9, Y1
Complete the series by replacing the '?'
Q331T, U442X, Y553A, ?
Complete the series by replacing the '?'
RL12, TQ20, WU32, AX48, ?
Complete the series by replacing the '?'
V2R, Y8T, B15V, E76X, ?
Complete the series 162,54, 18, 6, ? by replacing the question mark?