Directions : Find the missing number from the given responses in each of the following questions . 

Find the missing number from the given alternatives.

Find the missing number?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
I, L, O, R, ?

In the given figure select the number that can replace the question mark (?).

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

Find the missing number from the below options.
6    24    96
7    28   112
13   52   ?

Find the missing number in the following diagram?