Abhishek ranks thirteenth in a class of thirty-one students. What is his rank from the last (in $19^{th}$)?

In a class of $10$ girls and $20$ boys,Jaya's rank is $4$ among the girls and $18$ in the class. What is Jaya's rank among the boys in the class?

In a column of girls,Kamal is $11^{th}$ from the front. Neela is $3$ places ahead of Sunita,who is $22^{nd}$ from the front. How many girls are there between Kamal and Neela in the column?

If the $25^{th}$ of August in a year is Thursday,the number of Mondays in that month is

Among $A, B, C, D$ and $E$,$A$ is taller than $B$ but shorter than $C$. $B$ is taller than only $E$. $C$ is not the tallest. Who among them will be in the middle if they stand in the order of their heights?

In the following number sequence,how many such even numbers are there which are exactly divisible by its immediate preceding number but not exactly divisible by its immediate following number?
$3, 8, 4, 1, 5, 7, 2, 8, 3, 4, 8, 9, 3, 9, 4, 2, 1, 5, 8, 2$