When Rahul was shifted by three places towards his right side, then he occupies the middle position, i.e., 13th position.

Ascending order 1 2 3 4 5 7 8 9
? Required difference = 5 - 3 = 2

After interchanging the first and the last digit, numbers are 984, 145, 456, 359, 387
Hence, second highest number = 456 means 654.

Arranging all the digits in ascending order, we get
489, 145, 456, 359, 378
Hence , lowest number = 145 ? 541

489 ? 484, 541 ? 536, 654 ? 649,
953 ? 948, 783 ? 778
Hence, required difference = 7 - 4
= 3

After interchanging first first and second digit, number are
849, 451, 564, 593, 873.
Hence, third highest number = 593 ? 953

As per the given information C has more amount than only E/B/A. So, it means D > C > E / B / A arrangement can be established.
So, D has maximum amount of money.

On the basis of give information,
Order of ranking of height in the question of variable nature as it cannot be established whether Harish is taller than Suresh or not. The given information not complete to bring a relationship between Harish and Suresh.
So it cannot be determined who is the shortest.

According to question,
Roshan is taller than Hardik who is shorter than Sushil.
R > Hardik But Hardik < S.
Niza is taller than Harry but shorter than Hardik.
N > Harry But N < Hardik
Sushil is shorter than Roshan.
S < R
Descending order of the heights is as
Roshan > Sushil > Hardik > Niza > Harry.
Therefore, the tallest person is Roshan.

According to given question,
Vasant is taller than Manohar but not as tall as Raju.
V > M But R > V.
Jayant is taller than Dutta But shorter than Manohar.
J > D But M > J.
So V > M and M > J
Then V > M > J
R > V and J > D
Then R > V > M > J >D
Descending order of the heights is as
Raju > Vasant > Manohar > Jayant > Dutta
Hence, Raju is the tallest.