List of top Data Interpretation & Logical Reasoning (DILR) Questions on Number Series

Find wrong number in series.
3, 7, 15, 27, 63,127,255
Find wrong number in series.
10, 25, 45, 54, 60, 75, 80
Find wrong number in series.
396, 462, 572, 427, 671, 264
Find wrong number in series.
105,85,60,30,0,-45,-90
Find wrong number in series.
15, 16, 34, 105, 424, 2124, 12576
Find wrong number in series.
8,13,21,32,47,63,83
Find out the next number in the series 97, 86, 73, 58, 45, (............):
Which number should be replaced with \( x \) in the following series?
What is the value of the blank position in the given series?
How many '4's are there in the series which comes between two '5's? \[ 3, 4, 4, 5, 4, 5, 4, 2, 1, 4, 5, 4, 5, 7, 4, 5, 4, 5 \]
Complete the series 95, 115.5, 138, ........, 189:
What should come in the place of question mark (?) in the following series:
CO3KP, DO4KQ, EO5KR, FO6KS, ?
Identify the incorrect number in the following series:
What replaces question mark (?) in the series given below:
88, 64, 24, ?