In a certain code language, '3a, 2b, 7c' means 'Truth is Eternal';

'7c, 9a, 8b, 3a' means 'Enmity is not Eternal'  and

'9a, 4d, 2b, 8b' means 'Truth does not perish'.

Which of the following means 'enmity' in that language ?

The colour of clean sky is 'blue' and as givne, 'yellow' means 'blue'.

so, the colour of clear sky is 'yellow'.

A 'tractor' is used to plough a field.

But a 'tractor' is called 'car'.
So, a 'car' will be used to plough the field.

The colour of clear sky is 'blue' and as given, 'blue' is called 'sky'.

So, the colour of clear sky is 'sky'.

In the given code, A = 2, B = 4, C = 6,.... , Z = 52.

So, ACT = 2 + 6 + 40 = 48 and

BAT = 4 + 2 + 40 = 46

 The alphabets in the given words are coded as follows :

$$\begin{gathered} M I S T A K E N D \\ 9 7 6 5 4 1 2 8 3 \end{gathered}$$

D is coded as 3,

I as 7,
S as 6,
T as 5,
A as 4  and
N as 8.
So, the code for DISTANT is 3765485.

The alphabets are coded as follows :

$$\begin{gathered} C H A R O L M E \\ 4 5 1 6 9 3 2 7 \end{gathered}$$

R is coded as 6,

E as 7,
A as 1  and
L as 3.
So, the code for REAL is 6713

The alphabets are soded as shown :

$$\begin{gathered} E N T R Y S A D \\ 1 2 3 4 5 9 7 8 \end{gathered}$$

N is coded as 2,

E as 1,
A as 7,
T as 3   and
S as 9.
So, NEATNESS is coded as 21732199.

 The alphabets are coded as shown :

$$\begin{gathered} R O S E C H A I P \\ 6 8 2 1 7 3 4 5 9 \end{gathered}$$

So, in SEARCH,

S ia coded as 2,
E as 1,
A as 4,
R as 6,
C as 7,
H as 3.
Thus, the code for SEARCH is 214673