Ques:- Find out the wrong number in a given series.
3, 7, 15, 39, 63, 127, 255, 511
3, 7, 15, 39, 63, 127, 255, 511
A. 7
B. 15
C. 39
D. 67
Ques:- How many times do the hands of a clock point towards each other in a day?
A. 12
B. 20
C. 22
D. 24