Deletion in Red-Black Trees maintains balance

Select the number from among the given options that can replace the question mark (?) in the following table.

M/14 : O/12 : : U/6 : ?

Find the missing term.

In the following expression find the missing term:  

Find the missing term:

Study the given matric carefully and select the number from among the given options that can replace the question mark (?) in it.

Study the given pattern carefully and select the number from among the given options that can replace the question mark (?).

Select the number from among the given option that can replace the question mark (?) in the following series.

11, 18, 30, 52, 94, ?

Find the missing number.