Find the missing number from the below options.
80
The given figure:
The logic is as follows:The number in the square is the product of the number that is in the same sector and the number that is in the sector which is to its immediate left:
Hence, 80 is the missing number in the figure.
Find the missing number from the below options.

Find the missing number from the below options.

Select the number that can replace the question mark (?) in the following pattern.
5 | 6 | 7 | 8 | 9 |
115 | 206 | ? | 502 | 719 |
What function does the public key serve in digital signature verification?
Which of the following is an example of multi-factor authentication for PC security?
Find the missing term in the following question:

What number will come in place of question mark in this series?
100, 115, ?, 150, 170, 185
A. 135
B. 130
C. 140
D. 145