Among $P,$ $Q,$ $R,$ $S,$ and $T,$ $S$ is older than $R$ but not as old as $T.$ $Q$ is older than only $P.$ Who among them is the youngest?

In a queue of children,Kashish is $5^{th}$ from the left and Mona is $6^{th}$ from the right. When they interchange their places among themselves,Kashish becomes $13^{th}$ from the left. Then,what will be Mona's position from the right (in $^{th}$)?

Below is given a number series:
$1, 8, 5, 7, 2, 9, 8, 4, 3, 6, 2, 7, 5, 1, 8, 9, 4, 3, 6, 5, 9$
How many instances are there in which an even number is followed by two odd numbers?

How many $7$'s are there in the following series which are not immediately followed by $3$ but immediately preceded by $8$?
$8, 9, 8, 7, 6, 2, 2, 6, 3, 2, 6, 9, 7, 3, 2, 8, 7, 2, 7, 7, 8, 7, 3, 7, 7, 9, 4$

If it was Saturday on $17^{th}$ December,$1982$,what will be the day on $22^{nd}$ December,$1984$?

Mohini went to the movies nine days ago. She goes to the movies only on Thursday. What day of the week is today?