If the sentence "you must go early to catch the train" is coded as "early catch train must to go the you", what will be code for the sentence "morning exercise will help you to keep fit"?

According to given question,
B ? 5, E ? %, A ? *, M ? K, C ? $,O ? 7
Simillarly , we can write with the help of above -
B ? 5 , O ? 7 , M ? K , B ? 5
So , BOMB ? 57K5

CHAIR ? DOXQK

F A T H E R
F B T I E S
Here,
A ? b
H ? I
R ? S
As, Letters are exchanged by their next letter similarly. SISTER will be SJSUES

8

The given logic is as follows-
word : F A T H E R
Logic : +2 +2 +2 +2 +2 +2
code : H C V J G T
Similarly, the code for 'SHIP' is 'UJKR' .

Difference between alphabetical positions of N and O = 1 = difference between 2 and 3
Difference between alphabetical positions of O and R = 3 = Diff. between 3 and 6.
Similarly, for REST,
difference between R and E = 13,
difference between E and S = 14
and difference between S and T = 1
Try All option one by one and we will found that here, Only option (c) follows above condition.

By Replacing O , 2nd letter in the word ' Vertex ' , we get
Vertex? Vortex

Code for Consonant is it's place value, and code for vowels are given below
A ? 1,
E ? 2,
I ? 3,
O ? 4,
U ? 5

Therefor
M ? 13,
A ? 1,
N ? 14,
G ? 7,
O ? 4

So the code for MANGO is 1311474

From Question
M + 3 = P
O +3 = R
U + 0 = U
S -2 = Q
E -2 = C

In the same way Same way,
S +3 = V
H + 3 = K
I + 0 = I
F - 2 =D
T -2 = R

For question it is clear that, the second and third letters, fourth and fifth letters, sixth and seventh letters of the word mutually interchange positions to form the code.

So
C ? C

I ? R

R ? I

C ? U

U ? C

L ? A

A ? L

R ? R

so the code for CIRCULAR is CRIUCALR