If the first and second digits in the sequence $5, 9, 8, 1, 3, 2, 7, 4, 3, 8$ are interchanged,also the third and fourth digits,the fifth and sixth digits and so on,which digit would be the seventh counting to your left?

Three persons $A, B$ and $C$ are standing in a queue. There are $5$ persons between $A$ and $B$ and $8$ persons between $B$ and $C$. If there are $3$ persons ahead of $C$ and $21$ persons behind $A$, what could be the minimum number of persons in the queue?

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?

How many numbers from $11$ to $50$ are there which are exactly divisible by $7$ but not by $3$?

Aruna ranks twelfth in a class of forty-six. What will be her rank from the last?

Sajith ranked thirteenth from the top and twenty-sixth from the bottom among those who have passed in the annual examination in a class. If six students have failed in the annual examination, what was the total number of students in that class?