What is the purpose of polymorphism in object-oriented

Find the missing term in the following series:

43 44 ? 69 185

Find the missing number.

In the following question, a series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

What will come in the place of question mark?

In the following question, select the missing number from the given alternatives.

45, 15, 60, 75, 135, ?

Find the missing term in the given series:

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

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

Find the missing term:

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

First row: 4, 6, 18