On the basis of which phenomenon does a Jet Engine work?

Read the following logic and answer the given question. 

A + B is the mother of A, B. 

AB is the father of A, B. 

Complete the series: 

P3C, R5F, T81, V12L,?

Q is the mother of R. P is the husband of Q. S is the brother of R. How is P related to S?

Arrange the words in a meaningful logical order and select the appropriate sequence :

1. Toddlerhood

2. Adulthood 3. Infancy

Select the option that is different from the other three.

 'A + B' means 'A' is the sister of 'B'.

'A @ B' means 'A' is the wife of 'B'.

'A $ B' means 'A' is the son of 'B'.

Find the missing figure from the given series.

3, 13, 1113, 3113, ______

Select the Venn diagram that best illustrates the relationship among the following classes.

Female, Cardiologist, Engineer

In a certain code language, CABLE is coded as 65@7#, and PARKLET is coded as 85917#2. How will ELRAP be coded in that language?