Nineteen years from now, Jackson will be $3$ times as old as Joseph is now. Johnson is three years younger than Jackson. Let $\mathrm{I}$ be Johnson's age now and $\mathrm{II}$ be Joseph's age now.

Father is aged three times more than his son Sumit. After $8$ years, he would be two and half times of Sumit's age. After further $8$ years, how many times would he be of Sumit's age?

A father said to his son, "I was as old as you are at present at the time of your birth." If the father's age is $38$ years now, the son's age five years ago was:

The ratio of P's age and Q's age is $5:7$. If the difference between the present age of Q and the age of P six years hence is $2$ years, then what is the sum of the present ages of P and Q?

If the ages of $P$ and $R$ are added to twice the age of $Q$, the total becomes $59$. If the ages of $Q$ and $R$ are added to thrice the age of $P$, the total becomes $68$. And if the age of $P$ is added to thrice the age of $Q$ and thrice the age of $R$, the total becomes $108$. What is the age of $P$?

The product of the ages of Harish and Seema is $240$. If twice the age of Seema is more than Harish's age by $4$ years, what is Seema's age in years?

$Q$ is as much younger than $R$ as he is older than $T$. If the sum of the ages of $R$ and $T$ is $50$ years, what is definitely the difference between $R$ and $Q$'s age?