In a queue,Amrita is $10^{th}$ from the front while Mukul is $25^{th}$ from behind and Mamta is just in the middle of the two. If there are $50$ persons in the queue,what position does Mamta occupy from the front (in $^{th}$)?

How many even numbers are there in the following sequence of numbers which are immediately followed by an odd number as well as immediately preceded by an even number?
$8, 6, 7, 6, 8, 9, 3, 2, 7, 5, 3, 4, 2, 2, 3, 5, 5, 2, 2, 8, 1, 1, 9$

In the series given below,count each $5$ which is not immediately preceded by $3$ but is immediately followed by $7$. How many such $5$ are there?
$1, 5, 7, 3, 5, 7, 4, 7, 3, 7, 2, 5, 6, 5, 8, 5, 7, 4, 5, 6, 5, 5, 7, 1, 5, 7, 7, 5, 5$

The letters $L, M, N, O, P, Q, R, S$ and $T$ in their order are substituted by nine integers $1$ to $9$ but not necessarily in that order. $4$ is assigned to $P$. The difference between $P$ and $T$ is $5$. The difference between $N$ and $T$ is $3$. What is the integer assigned to $N$?

Five boys took part in a race. Prabir finished before Mohit but behind Mihir. Suresh finished before Sanchit but behind Mohit. Who won the race?

Which is the third number to the left of the number which is exactly in the middle of the following sequence of numbers?
$1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 4, 6, 8, 9, 7, 5, 3, 1, 9, 8, 7, 6, 5, 4, 3, 2, 1$