If COOL is coded as DQRP, then write the code for HOT

Answer: Option A

Explanation:

Clearly every letter is increased by 1 as
M +1 N
A +1 B
D +1 E
R +1 S
A +1 B
S +1 T

So after increasing every character in work BOMBAY by 1, we get

Answer: Option C

Explanation:

The letters at odd positions are each moved one step backward, while the letters at even positions are respectively moved six, five, four, three, two,... steps backward to obtain the corresponding letters of the code.

Answer: Option A

Explanation:

The first, second, third, fourth, fifth and sixth letters of th word are respectively moved two, three, four, five, six and seven steps forward to obtain the corresponding letters of the code.

So CANDLE will be coded as EDRIRL.

Answer: Option B

Explanation:

Clearly,

T -1 = S
A -1 = Z
P -1 = O

So FREEZE will be,

F -1 E
R -1 Q
E -1 D
E -1 D
Z -1 Y
E -1 D

Answer: Option D

Explanation:

Clearly every letter is decreased by 1.
So DISPOSE will be CHRONRD